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Finding the Fourth Proportional to 1,484.36, 2,227.08 and 754.28

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Solution

The fourth proportional to 1,484.36, 2,227.08 and 754.28 is: 1,131.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.36 : 2,227.08 = 754.28 : x
  2. Step 2: Convert to fraction form
    1,484.36/2,227.08 = 754.28/x
  3. Step 3: Cross multiply
    1,484.36x = 2,227.08 × 754.28
  4. Step 4: Simplify right side
    1,484.36x = 1,679,841.90
  5. Step 5: Solve for x
    x = 1,679,841.90/1,484.36
  6. Step 6: Final answer
    x = 1,131.69

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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.