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Finding the Fourth Proportional to 1,250.79, 1,877.23 and 625.90

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Solution

The fourth proportional to 1,250.79, 1,877.23 and 625.90 is: 939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.79 : 1,877.23 = 625.90 : x
  2. Step 2: Convert to fraction form
    1,250.79/1,877.23 = 625.90/x
  3. Step 3: Cross multiply
    1,250.79x = 1,877.23 × 625.90
  4. Step 4: Simplify right side
    1,250.79x = 1,174,948.87
  5. Step 5: Solve for x
    x = 1,174,948.87/1,250.79
  6. Step 6: Final answer
    x = 939.37

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1.5x scale

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.