Home / 2,217.47-3,059.24-1,272.92

Finding the Fourth Proportional to 2,217.47, 3,059.24 and 1,272.92

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Solution

The fourth proportional to 2,217.47, 3,059.24 and 1,272.92 is: 1,756.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.47 : 3,059.24 = 1,272.92 : x
  2. Step 2: Convert to fraction form
    2,217.47/3,059.24 = 1,272.92/x
  3. Step 3: Cross multiply
    2,217.47x = 3,059.24 × 1,272.92
  4. Step 4: Simplify right side
    2,217.47x = 3,894,167.78
  5. Step 5: Solve for x
    x = 3,894,167.78/2,217.47
  6. Step 6: Final answer
    x = 1,756.13

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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.