Home / 5,272.04-7,275.20-3,147.92

Finding the Fourth Proportional to 5,272.04, 7,275.20 and 3,147.92

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Solution

The fourth proportional to 5,272.04, 7,275.20 and 3,147.92 is: 4,344.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.04 : 7,275.20 = 3,147.92 : x
  2. Step 2: Convert to fraction form
    5,272.04/7,275.20 = 3,147.92/x
  3. Step 3: Cross multiply
    5,272.04x = 7,275.20 × 3,147.92
  4. Step 4: Simplify right side
    5,272.04x = 22,901,747.58
  5. Step 5: Solve for x
    x = 22,901,747.58/5,272.04
  6. Step 6: Final answer
    x = 4,344.00

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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.