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Finding the Fourth Proportional to 6,451.65, 8,906.56 and 3,801.74

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Solution

The fourth proportional to 6,451.65, 8,906.56 and 3,801.74 is: 5,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,451.65 : 8,906.56 = 3,801.74 : x
  2. Step 2: Convert to fraction form
    6,451.65/8,906.56 = 3,801.74/x
  3. Step 3: Cross multiply
    6,451.65x = 8,906.56 × 3,801.74
  4. Step 4: Simplify right side
    6,451.65x = 33,860,371.38
  5. Step 5: Solve for x
    x = 33,860,371.38/6,451.65
  6. Step 6: Final answer
    x = 5,248.33

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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.