Home / 6,687.29-9,228.21-3,702.89

Finding the Fourth Proportional to 6,687.29, 9,228.21 and 3,702.89

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Solution

The fourth proportional to 6,687.29, 9,228.21 and 3,702.89 is: 5,109.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,687.29 : 9,228.21 = 3,702.89 : x
  2. Step 2: Convert to fraction form
    6,687.29/9,228.21 = 3,702.89/x
  3. Step 3: Cross multiply
    6,687.29x = 9,228.21 × 3,702.89
  4. Step 4: Simplify right side
    6,687.29x = 34,171,046.53
  5. Step 5: Solve for x
    x = 34,171,046.53/6,687.29
  6. Step 6: Final answer
    x = 5,109.85

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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.