Home / 3,612.52-4,987.68-2,217.68

Finding the Fourth Proportional to 3,612.52, 4,987.68 and 2,217.68

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Solution

The fourth proportional to 3,612.52, 4,987.68 and 2,217.68 is: 3,061.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.52 : 4,987.68 = 2,217.68 : x
  2. Step 2: Convert to fraction form
    3,612.52/4,987.68 = 2,217.68/x
  3. Step 3: Cross multiply
    3,612.52x = 4,987.68 × 2,217.68
  4. Step 4: Simplify right side
    3,612.52x = 11,061,078.18
  5. Step 5: Solve for x
    x = 11,061,078.18/3,612.52
  6. Step 6: Final answer
    x = 3,061.87

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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.