Home / 5,231.52-7,853.76-2,311.20

Finding the Fourth Proportional to 5,231.52, 7,853.76 and 2,311.20

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Solution

The fourth proportional to 5,231.52, 7,853.76 and 2,311.20 is: 3,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.52 : 7,853.76 = 2,311.20 : x
  2. Step 2: Convert to fraction form
    5,231.52/7,853.76 = 2,311.20/x
  3. Step 3: Cross multiply
    5,231.52x = 7,853.76 × 2,311.20
  4. Step 4: Simplify right side
    5,231.52x = 18,151,610.11
  5. Step 5: Solve for x
    x = 18,151,610.11/5,231.52
  6. Step 6: Final answer
    x = 3,469.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.