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Finding the Fourth Proportional to 1,254.72, 1,882.18 and 605.64

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Solution

The fourth proportional to 1,254.72, 1,882.18 and 605.64 is: 908.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254.72 : 1,882.18 = 605.64 : x
  2. Step 2: Convert to fraction form
    1,254.72/1,882.18 = 605.64/x
  3. Step 3: Cross multiply
    1,254.72x = 1,882.18 × 605.64
  4. Step 4: Simplify right side
    1,254.72x = 1,139,923.50
  5. Step 5: Solve for x
    x = 1,139,923.50/1,254.72
  6. Step 6: Final answer
    x = 908.51

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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.