Home / 2,792.97-4,160.33-2,645.05

Finding the Fourth Proportional to 2,792.97, 4,160.33 and 2,645.05

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Solution

The fourth proportional to 2,792.97, 4,160.33 and 2,645.05 is: 3,939.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,792.97 : 4,160.33 = 2,645.05 : x
  2. Step 2: Convert to fraction form
    2,792.97/4,160.33 = 2,645.05/x
  3. Step 3: Cross multiply
    2,792.97x = 4,160.33 × 2,645.05
  4. Step 4: Simplify right side
    2,792.97x = 11,004,280.87
  5. Step 5: Solve for x
    x = 11,004,280.87/2,792.97
  6. Step 6: Final answer
    x = 3,939.99

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Find fourth proportional to 1,396.49, 2,080.17 and 1,322.53
Half scale
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Double scale
Find fourth proportional to 2,793.97, 4,161.82 and 2,646.05
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.