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Finding the Fourth Proportional to 2,500.43, 3,750.75 and 940.28

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Solution

The fourth proportional to 2,500.43, 3,750.75 and 940.28 is: 1,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,500.43 : 3,750.75 = 940.28 : x
  2. Step 2: Convert to fraction form
    2,500.43/3,750.75 = 940.28/x
  3. Step 3: Cross multiply
    2,500.43x = 3,750.75 × 940.28
  4. Step 4: Simplify right side
    2,500.43x = 3,526,755.21
  5. Step 5: Solve for x
    x = 3,526,755.21/2,500.43
  6. Step 6: Final answer
    x = 1,410.46

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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.