Home / 5,160.15-7,723.80-2,691.59

Finding the Fourth Proportional to 5,160.15, 7,723.80 and 2,691.59

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Solution

The fourth proportional to 5,160.15, 7,723.80 and 2,691.59 is: 4,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,160.15 : 7,723.80 = 2,691.59 : x
  2. Step 2: Convert to fraction form
    5,160.15/7,723.80 = 2,691.59/x
  3. Step 3: Cross multiply
    5,160.15x = 7,723.80 × 2,691.59
  4. Step 4: Simplify right side
    5,160.15x = 20,789,264.22
  5. Step 5: Solve for x
    x = 20,789,264.22/5,160.15
  6. Step 6: Final answer
    x = 4,028.81

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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.