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Finding the Fourth Proportional to 2,898.91, 4,349.17 and 1,255.70

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Solution

The fourth proportional to 2,898.91, 4,349.17 and 1,255.70 is: 1,883.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.91 : 4,349.17 = 1,255.70 : x
  2. Step 2: Convert to fraction form
    2,898.91/4,349.17 = 1,255.70/x
  3. Step 3: Cross multiply
    2,898.91x = 4,349.17 × 1,255.70
  4. Step 4: Simplify right side
    2,898.91x = 5,461,261.68
  5. Step 5: Solve for x
    x = 5,461,261.68/2,898.91
  6. Step 6: Final answer
    x = 1,883.90

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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.