Home / 5,177.88-7,145.76-2,939.82

Finding the Fourth Proportional to 5,177.88, 7,145.76 and 2,939.82

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Solution

The fourth proportional to 5,177.88, 7,145.76 and 2,939.82 is: 4,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.88 : 7,145.76 = 2,939.82 : x
  2. Step 2: Convert to fraction form
    5,177.88/7,145.76 = 2,939.82/x
  3. Step 3: Cross multiply
    5,177.88x = 7,145.76 × 2,939.82
  4. Step 4: Simplify right side
    5,177.88x = 21,007,248.16
  5. Step 5: Solve for x
    x = 21,007,248.16/5,177.88
  6. Step 6: Final answer
    x = 4,057.11

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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.