Home / 7,318.73-10,979.85-2,388.38

Finding the Fourth Proportional to 7,318.73, 10,979.85 and 2,388.38

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Solution

The fourth proportional to 7,318.73, 10,979.85 and 2,388.38 is: 3,583.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.73 : 10,979.85 = 2,388.38 : x
  2. Step 2: Convert to fraction form
    7,318.73/10,979.85 = 2,388.38/x
  3. Step 3: Cross multiply
    7,318.73x = 10,979.85 × 2,388.38
  4. Step 4: Simplify right side
    7,318.73x = 26,223,987.30
  5. Step 5: Solve for x
    x = 26,223,987.30/7,318.73
  6. Step 6: Final answer
    x = 3,583.14

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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.