Home / 5,176.29-7,139.66-3,187.95

Finding the Fourth Proportional to 5,176.29, 7,139.66 and 3,187.95

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Solution

The fourth proportional to 5,176.29, 7,139.66 and 3,187.95 is: 4,397.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,176.29 : 7,139.66 = 3,187.95 : x
  2. Step 2: Convert to fraction form
    5,176.29/7,139.66 = 3,187.95/x
  3. Step 3: Cross multiply
    5,176.29x = 7,139.66 × 3,187.95
  4. Step 4: Simplify right side
    5,176.29x = 22,760,879.10
  5. Step 5: Solve for x
    x = 22,760,879.10/5,176.29
  6. Step 6: Final answer
    x = 4,397.14

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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.