Home / 1,045.11-1,442.40-673.15

Finding the Fourth Proportional to 1,045.11, 1,442.40 and 673.15

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Solution

The fourth proportional to 1,045.11, 1,442.40 and 673.15 is: 929.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.11 : 1,442.40 = 673.15 : x
  2. Step 2: Convert to fraction form
    1,045.11/1,442.40 = 673.15/x
  3. Step 3: Cross multiply
    1,045.11x = 1,442.40 × 673.15
  4. Step 4: Simplify right side
    1,045.11x = 970,951.56
  5. Step 5: Solve for x
    x = 970,951.56/1,045.11
  6. Step 6: Final answer
    x = 929.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.