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Finding the Fourth Proportional to 1,750.38, 2,625.84 and 654.90

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Solution

The fourth proportional to 1,750.38, 2,625.84 and 654.90 is: 982.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.38 : 2,625.84 = 654.90 : x
  2. Step 2: Convert to fraction form
    1,750.38/2,625.84 = 654.90/x
  3. Step 3: Cross multiply
    1,750.38x = 2,625.84 × 654.90
  4. Step 4: Simplify right side
    1,750.38x = 1,719,646.21
  5. Step 5: Solve for x
    x = 1,719,646.21/1,750.38
  6. Step 6: Final answer
    x = 982.44

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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.