Home / 6,753.96-9,321.30-3,920.72

Finding the Fourth Proportional to 6,753.96, 9,321.30 and 3,920.72

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Solution

The fourth proportional to 6,753.96, 9,321.30 and 3,920.72 is: 5,411.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,753.96 : 9,321.30 = 3,920.72 : x
  2. Step 2: Convert to fraction form
    6,753.96/9,321.30 = 3,920.72/x
  3. Step 3: Cross multiply
    6,753.96x = 9,321.30 × 3,920.72
  4. Step 4: Simplify right side
    6,753.96x = 36,546,160.73
  5. Step 5: Solve for x
    x = 36,546,160.73/6,753.96
  6. Step 6: Final answer
    x = 5,411.07

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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.