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Finding the Fourth Proportional to 3,344.79, 5,018.19 and 1,265.43

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Solution

The fourth proportional to 3,344.79, 5,018.19 and 1,265.43 is: 1,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,344.79 : 5,018.19 = 1,265.43 : x
  2. Step 2: Convert to fraction form
    3,344.79/5,018.19 = 1,265.43/x
  3. Step 3: Cross multiply
    3,344.79x = 5,018.19 × 1,265.43
  4. Step 4: Simplify right side
    3,344.79x = 6,350,152.30
  5. Step 5: Solve for x
    x = 6,350,152.30/3,344.79
  6. Step 6: Final answer
    x = 1,898.52

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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.