Home / 3,781.26-5,217.21-2,455.02

Finding the Fourth Proportional to 3,781.26, 5,217.21 and 2,455.02

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Solution

The fourth proportional to 3,781.26, 5,217.21 and 2,455.02 is: 3,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.26 : 5,217.21 = 2,455.02 : x
  2. Step 2: Convert to fraction form
    3,781.26/5,217.21 = 2,455.02/x
  3. Step 3: Cross multiply
    3,781.26x = 5,217.21 × 2,455.02
  4. Step 4: Simplify right side
    3,781.26x = 12,808,354.89
  5. Step 5: Solve for x
    x = 12,808,354.89/3,781.26
  6. Step 6: Final answer
    x = 3,387.32

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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.