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Finding the Fourth Proportional to 7,869.92, 11,805.52 and 2,397.92

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Solution

The fourth proportional to 7,869.92, 11,805.52 and 2,397.92 is: 3,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.92 : 11,805.52 = 2,397.92 : x
  2. Step 2: Convert to fraction form
    7,869.92/11,805.52 = 2,397.92/x
  3. Step 3: Cross multiply
    7,869.92x = 11,805.52 × 2,397.92
  4. Step 4: Simplify right side
    7,869.92x = 28,308,692.52
  5. Step 5: Solve for x
    x = 28,308,692.52/7,869.92
  6. Step 6: Final answer
    x = 3,597.08

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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.