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Finding the Fourth Proportional to 5,249.70, 7,248.97 and 4,689.18

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Solution

The fourth proportional to 5,249.70, 7,248.97 and 4,689.18 is: 6,474.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.70 : 7,248.97 = 4,689.18 : x
  2. Step 2: Convert to fraction form
    5,249.70/7,248.97 = 4,689.18/x
  3. Step 3: Cross multiply
    5,249.70x = 7,248.97 × 4,689.18
  4. Step 4: Simplify right side
    5,249.70x = 33,991,725.14
  5. Step 5: Solve for x
    x = 33,991,725.14/5,249.70
  6. Step 6: Final answer
    x = 6,474.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.