Home / 6,726.25-9,278.76-3,930.13

Finding the Fourth Proportional to 6,726.25, 9,278.76 and 3,930.13

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Solution

The fourth proportional to 6,726.25, 9,278.76 and 3,930.13 is: 5,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,726.25 : 9,278.76 = 3,930.13 : x
  2. Step 2: Convert to fraction form
    6,726.25/9,278.76 = 3,930.13/x
  3. Step 3: Cross multiply
    6,726.25x = 9,278.76 × 3,930.13
  4. Step 4: Simplify right side
    6,726.25x = 36,466,686.65
  5. Step 5: Solve for x
    x = 36,466,686.65/6,726.25
  6. Step 6: Final answer
    x = 5,421.55

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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.