Home / 5,318.35-7,972.38-2,979.49

Finding the Fourth Proportional to 5,318.35, 7,972.38 and 2,979.49

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Solution

The fourth proportional to 5,318.35, 7,972.38 and 2,979.49 is: 4,466.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,318.35 : 7,972.38 = 2,979.49 : x
  2. Step 2: Convert to fraction form
    5,318.35/7,972.38 = 2,979.49/x
  3. Step 3: Cross multiply
    5,318.35x = 7,972.38 × 2,979.49
  4. Step 4: Simplify right side
    5,318.35x = 23,753,626.49
  5. Step 5: Solve for x
    x = 23,753,626.49/5,318.35
  6. Step 6: Final answer
    x = 4,466.35

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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.