Home / 3,761.52-5,191.95-2,189.93

Finding the Fourth Proportional to 3,761.52, 5,191.95 and 2,189.93

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Solution

The fourth proportional to 3,761.52, 5,191.95 and 2,189.93 is: 3,022.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.52 : 5,191.95 = 2,189.93 : x
  2. Step 2: Convert to fraction form
    3,761.52/5,191.95 = 2,189.93/x
  3. Step 3: Cross multiply
    3,761.52x = 5,191.95 × 2,189.93
  4. Step 4: Simplify right side
    3,761.52x = 11,369,981.10
  5. Step 5: Solve for x
    x = 11,369,981.10/3,761.52
  6. Step 6: Final answer
    x = 3,022.71

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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.