Home / 5,275.20-7,272-3,875.52

Finding the Fourth Proportional to 5,275.20, 7,272 and 3,875.52

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Solution

The fourth proportional to 5,275.20, 7,272 and 3,875.52 is: 5,342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.20 : 7,272 = 3,875.52 : x
  2. Step 2: Convert to fraction form
    5,275.20/7,272 = 3,875.52/x
  3. Step 3: Cross multiply
    5,275.20x = 7,272 × 3,875.52
  4. Step 4: Simplify right side
    5,275.20x = 28,182,781.44
  5. Step 5: Solve for x
    x = 28,182,781.44/5,275.20
  6. Step 6: Final answer
    x = 5,342.50

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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.