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Finding the Fourth Proportional to 1,034.30, 1,552.01 and 803.66

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Solution

The fourth proportional to 1,034.30, 1,552.01 and 803.66 is: 1,205.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.30 : 1,552.01 = 803.66 : x
  2. Step 2: Convert to fraction form
    1,034.30/1,552.01 = 803.66/x
  3. Step 3: Cross multiply
    1,034.30x = 1,552.01 × 803.66
  4. Step 4: Simplify right side
    1,034.30x = 1,247,281.10
  5. Step 5: Solve for x
    x = 1,247,281.10/1,034.30
  6. Step 6: Final answer
    x = 1,205.92

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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.