Home / 5,272.40-7,275.71-3,148.29

Finding the Fourth Proportional to 5,272.40, 7,275.71 and 3,148.29

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Solution

The fourth proportional to 5,272.40, 7,275.71 and 3,148.29 is: 4,344.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.40 : 7,275.71 = 3,148.29 : x
  2. Step 2: Convert to fraction form
    5,272.40/7,275.71 = 3,148.29/x
  3. Step 3: Cross multiply
    5,272.40x = 7,275.71 × 3,148.29
  4. Step 4: Simplify right side
    5,272.40x = 22,906,052.91
  5. Step 5: Solve for x
    x = 22,906,052.91/5,272.40
  6. Step 6: Final answer
    x = 4,344.52

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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.