Home / 1,177.12-1,624.41-672.97

Finding the Fourth Proportional to 1,177.12, 1,624.41 and 672.97

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Solution

The fourth proportional to 1,177.12, 1,624.41 and 672.97 is: 928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177.12 : 1,624.41 = 672.97 : x
  2. Step 2: Convert to fraction form
    1,177.12/1,624.41 = 672.97/x
  3. Step 3: Cross multiply
    1,177.12x = 1,624.41 × 672.97
  4. Step 4: Simplify right side
    1,177.12x = 1,093,179.20
  5. Step 5: Solve for x
    x = 1,093,179.20/1,177.12
  6. Step 6: Final answer
    x = 928.69

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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.