Home / 4,071.75-5,616.34-3,231.12

Finding the Fourth Proportional to 4,071.75, 5,616.34 and 3,231.12

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Solution

The fourth proportional to 4,071.75, 5,616.34 and 3,231.12 is: 4,456.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,071.75 : 5,616.34 = 3,231.12 : x
  2. Step 2: Convert to fraction form
    4,071.75/5,616.34 = 3,231.12/x
  3. Step 3: Cross multiply
    4,071.75x = 5,616.34 × 3,231.12
  4. Step 4: Simplify right side
    4,071.75x = 18,147,060.42
  5. Step 5: Solve for x
    x = 18,147,060.42/4,071.75
  6. Step 6: Final answer
    x = 4,456.82

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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.