Home / 5,177.84-7,145.17-2,939.41

Finding the Fourth Proportional to 5,177.84, 7,145.17 and 2,939.41

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Solution

The fourth proportional to 5,177.84, 7,145.17 and 2,939.41 is: 4,056.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.84 : 7,145.17 = 2,939.41 : x
  2. Step 2: Convert to fraction form
    5,177.84/7,145.17 = 2,939.41/x
  3. Step 3: Cross multiply
    5,177.84x = 7,145.17 × 2,939.41
  4. Step 4: Simplify right side
    5,177.84x = 21,002,562.68
  5. Step 5: Solve for x
    x = 21,002,562.68/5,177.84
  6. Step 6: Final answer
    x = 4,056.24

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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.