Home / 2,717.28-3,748.41-1,720.85

Finding the Fourth Proportional to 2,717.28, 3,748.41 and 1,720.85

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Solution

The fourth proportional to 2,717.28, 3,748.41 and 1,720.85 is: 2,373.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.28 : 3,748.41 = 1,720.85 : x
  2. Step 2: Convert to fraction form
    2,717.28/3,748.41 = 1,720.85/x
  3. Step 3: Cross multiply
    2,717.28x = 3,748.41 × 1,720.85
  4. Step 4: Simplify right side
    2,717.28x = 6,450,432.61
  5. Step 5: Solve for x
    x = 6,450,432.61/2,717.28
  6. Step 6: Final answer
    x = 2,373.86

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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.