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Finding the Fourth Proportional to 3,379.62, 5,071.17 and 2,557.62

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Solution

The fourth proportional to 3,379.62, 5,071.17 and 2,557.62 is: 3,837.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.62 : 5,071.17 = 2,557.62 : x
  2. Step 2: Convert to fraction form
    3,379.62/5,071.17 = 2,557.62/x
  3. Step 3: Cross multiply
    3,379.62x = 5,071.17 × 2,557.62
  4. Step 4: Simplify right side
    3,379.62x = 12,970,125.82
  5. Step 5: Solve for x
    x = 12,970,125.82/3,379.62
  6. Step 6: Final answer
    x = 3,837.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.