Home / 3,854.24-5,781.15-1,081.10

Finding the Fourth Proportional to 3,854.24, 5,781.15 and 1,081.10

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Solution

The fourth proportional to 3,854.24, 5,781.15 and 1,081.10 is: 1,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.24 : 5,781.15 = 1,081.10 : x
  2. Step 2: Convert to fraction form
    3,854.24/5,781.15 = 1,081.10/x
  3. Step 3: Cross multiply
    3,854.24x = 5,781.15 × 1,081.10
  4. Step 4: Simplify right side
    3,854.24x = 6,250,001.27
  5. Step 5: Solve for x
    x = 6,250,001.27/3,854.24
  6. Step 6: Final answer
    x = 1,621.59

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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.