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Finding the Fourth Proportional to 2,345.62, 3,519.90 and 958.97

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Solution

The fourth proportional to 2,345.62, 3,519.90 and 958.97 is: 1,439.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.62 : 3,519.90 = 958.97 : x
  2. Step 2: Convert to fraction form
    2,345.62/3,519.90 = 958.97/x
  3. Step 3: Cross multiply
    2,345.62x = 3,519.90 × 958.97
  4. Step 4: Simplify right side
    2,345.62x = 3,375,456.11
  5. Step 5: Solve for x
    x = 3,375,456.11/2,345.62
  6. Step 6: Final answer
    x = 1,439.05

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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.