Home / 1,247.50-1,857.13-1,241.27

Finding the Fourth Proportional to 1,247.50, 1,857.13 and 1,241.27

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Solution

The fourth proportional to 1,247.50, 1,857.13 and 1,241.27 is: 1,847.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.50 : 1,857.13 = 1,241.27 : x
  2. Step 2: Convert to fraction form
    1,247.50/1,857.13 = 1,241.27/x
  3. Step 3: Cross multiply
    1,247.50x = 1,857.13 × 1,241.27
  4. Step 4: Simplify right side
    1,247.50x = 2,305,204.78
  5. Step 5: Solve for x
    x = 2,305,204.78/1,247.50
  6. Step 6: Final answer
    x = 1,847.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.