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Finding the Fourth Proportional to 1,184.13, 1,775.17 and 453.19

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Solution

The fourth proportional to 1,184.13, 1,775.17 and 453.19 is: 679.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,184.13 : 1,775.17 = 453.19 : x
  2. Step 2: Convert to fraction form
    1,184.13/1,775.17 = 453.19/x
  3. Step 3: Cross multiply
    1,184.13x = 1,775.17 × 453.19
  4. Step 4: Simplify right side
    1,184.13x = 804,489.29
  5. Step 5: Solve for x
    x = 804,489.29/1,184.13
  6. Step 6: Final answer
    x = 679.39

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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.