Home / 4,311.28-5,937.76-3,721.60

Finding the Fourth Proportional to 4,311.28, 5,937.76 and 3,721.60

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Solution

The fourth proportional to 4,311.28, 5,937.76 and 3,721.60 is: 5,125.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,311.28 : 5,937.76 = 3,721.60 : x
  2. Step 2: Convert to fraction form
    4,311.28/5,937.76 = 3,721.60/x
  3. Step 3: Cross multiply
    4,311.28x = 5,937.76 × 3,721.60
  4. Step 4: Simplify right side
    4,311.28x = 22,097,967.62
  5. Step 5: Solve for x
    x = 22,097,967.62/4,311.28
  6. Step 6: Final answer
    x = 5,125.62

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1.5x scale

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.