Home / 4,189.31-5,781.25-2,617.39

Finding the Fourth Proportional to 4,189.31, 5,781.25 and 2,617.39

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Solution

The fourth proportional to 4,189.31, 5,781.25 and 2,617.39 is: 3,612.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.31 : 5,781.25 = 2,617.39 : x
  2. Step 2: Convert to fraction form
    4,189.31/5,781.25 = 2,617.39/x
  3. Step 3: Cross multiply
    4,189.31x = 5,781.25 × 2,617.39
  4. Step 4: Simplify right side
    4,189.31x = 15,131,785.94
  5. Step 5: Solve for x
    x = 15,131,785.94/4,189.31
  6. Step 6: Final answer
    x = 3,612.00

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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.