Home / 4,459.28-6,687.20-1,338.56

Finding the Fourth Proportional to 4,459.28, 6,687.20 and 1,338.56

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Solution

The fourth proportional to 4,459.28, 6,687.20 and 1,338.56 is: 2,007.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.28 : 6,687.20 = 1,338.56 : x
  2. Step 2: Convert to fraction form
    4,459.28/6,687.20 = 1,338.56/x
  3. Step 3: Cross multiply
    4,459.28x = 6,687.20 × 1,338.56
  4. Step 4: Simplify right side
    4,459.28x = 8,951,186.67
  5. Step 5: Solve for x
    x = 8,951,186.67/4,459.28
  6. Step 6: Final answer
    x = 2,007.32

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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.