Home / 3,748.86-5,177.79-2,862.72

Finding the Fourth Proportional to 3,748.86, 5,177.79 and 2,862.72

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Solution

The fourth proportional to 3,748.86, 5,177.79 and 2,862.72 is: 3,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.86 : 5,177.79 = 2,862.72 : x
  2. Step 2: Convert to fraction form
    3,748.86/5,177.79 = 2,862.72/x
  3. Step 3: Cross multiply
    3,748.86x = 5,177.79 × 2,862.72
  4. Step 4: Simplify right side
    3,748.86x = 14,822,562.99
  5. Step 5: Solve for x
    x = 14,822,562.99/3,748.86
  6. Step 6: Final answer
    x = 3,953.89

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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.