Home / 6,456.40-8,912.24-3,803.92

Finding the Fourth Proportional to 6,456.40, 8,912.24 and 3,803.92

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Solution

The fourth proportional to 6,456.40, 8,912.24 and 3,803.92 is: 5,250.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.40 : 8,912.24 = 3,803.92 : x
  2. Step 2: Convert to fraction form
    6,456.40/8,912.24 = 3,803.92/x
  3. Step 3: Cross multiply
    6,456.40x = 8,912.24 × 3,803.92
  4. Step 4: Simplify right side
    6,456.40x = 33,901,447.98
  5. Step 5: Solve for x
    x = 33,901,447.98/6,456.40
  6. Step 6: Final answer
    x = 5,250.83

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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.