Home / 3,440.75-5,160.32-1,100.12

Finding the Fourth Proportional to 3,440.75, 5,160.32 and 1,100.12

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Solution

The fourth proportional to 3,440.75, 5,160.32 and 1,100.12 is: 1,649.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.75 : 5,160.32 = 1,100.12 : x
  2. Step 2: Convert to fraction form
    3,440.75/5,160.32 = 1,100.12/x
  3. Step 3: Cross multiply
    3,440.75x = 5,160.32 × 1,100.12
  4. Step 4: Simplify right side
    3,440.75x = 5,676,965.74
  5. Step 5: Solve for x
    x = 5,676,965.74/3,440.75
  6. Step 6: Final answer
    x = 1,649.92

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.