Home / 6,721-9,275.02-3,925.96

Finding the Fourth Proportional to 6,721, 9,275.02 and 3,925.96

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Solution

The fourth proportional to 6,721, 9,275.02 and 3,925.96 is: 5,417.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721 : 9,275.02 = 3,925.96 : x
  2. Step 2: Convert to fraction form
    6,721/9,275.02 = 3,925.96/x
  3. Step 3: Cross multiply
    6,721x = 9,275.02 × 3,925.96
  4. Step 4: Simplify right side
    6,721x = 36,413,357.52
  5. Step 5: Solve for x
    x = 36,413,357.52/6,721
  6. Step 6: Final answer
    x = 5,417.85

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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.