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Finding the Fourth Proportional to 2,306.48, 3,459.92 and 663.20

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Solution

The fourth proportional to 2,306.48, 3,459.92 and 663.20 is: 994.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,306.48 : 3,459.92 = 663.20 : x
  2. Step 2: Convert to fraction form
    2,306.48/3,459.92 = 663.20/x
  3. Step 3: Cross multiply
    2,306.48x = 3,459.92 × 663.20
  4. Step 4: Simplify right side
    2,306.48x = 2,294,618.94
  5. Step 5: Solve for x
    x = 2,294,618.94/2,306.48
  6. Step 6: Final answer
    x = 994.86

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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.