Home / 1,139.15-1,707.56-582.85

Finding the Fourth Proportional to 1,139.15, 1,707.56 and 582.85

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Solution

The fourth proportional to 1,139.15, 1,707.56 and 582.85 is: 873.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139.15 : 1,707.56 = 582.85 : x
  2. Step 2: Convert to fraction form
    1,139.15/1,707.56 = 582.85/x
  3. Step 3: Cross multiply
    1,139.15x = 1,707.56 × 582.85
  4. Step 4: Simplify right side
    1,139.15x = 995,251.35
  5. Step 5: Solve for x
    x = 995,251.35/1,139.15
  6. Step 6: Final answer
    x = 873.68

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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.