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Finding the Fourth Proportional to 6,686.71, 9,228 and 3,702.87

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Solution

The fourth proportional to 6,686.71, 9,228 and 3,702.87 is: 5,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686.71 : 9,228 = 3,702.87 : x
  2. Step 2: Convert to fraction form
    6,686.71/9,228 = 3,702.87/x
  3. Step 3: Cross multiply
    6,686.71x = 9,228 × 3,702.87
  4. Step 4: Simplify right side
    6,686.71x = 34,170,084.36
  5. Step 5: Solve for x
    x = 34,170,084.36/6,686.71
  6. Step 6: Final answer
    x = 5,110.15

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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.