Home / 3,040.10-4,195.36-1,781.19

Finding the Fourth Proportional to 3,040.10, 4,195.36 and 1,781.19

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Solution

The fourth proportional to 3,040.10, 4,195.36 and 1,781.19 is: 2,458.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,040.10 : 4,195.36 = 1,781.19 : x
  2. Step 2: Convert to fraction form
    3,040.10/4,195.36 = 1,781.19/x
  3. Step 3: Cross multiply
    3,040.10x = 4,195.36 × 1,781.19
  4. Step 4: Simplify right side
    3,040.10x = 7,472,735.50
  5. Step 5: Solve for x
    x = 7,472,735.50/3,040.10
  6. Step 6: Final answer
    x = 2,458.06

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Half scale
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Double scale
Find fourth proportional to 3,041.10, 4,196.74 and 1,782.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.