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Finding the Fourth Proportional to 5,248.31, 7,868.82 and 1,960.52

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Solution

The fourth proportional to 5,248.31, 7,868.82 and 1,960.52 is: 2,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.31 : 7,868.82 = 1,960.52 : x
  2. Step 2: Convert to fraction form
    5,248.31/7,868.82 = 1,960.52/x
  3. Step 3: Cross multiply
    5,248.31x = 7,868.82 × 1,960.52
  4. Step 4: Simplify right side
    5,248.31x = 15,426,978.99
  5. Step 5: Solve for x
    x = 15,426,978.99/5,248.31
  6. Step 6: Final answer
    x = 2,939.42

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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.