Home / 3,326.68-4,991.04-1,478.28

Finding the Fourth Proportional to 3,326.68, 4,991.04 and 1,478.28

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Solution

The fourth proportional to 3,326.68, 4,991.04 and 1,478.28 is: 2,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,326.68 : 4,991.04 = 1,478.28 : x
  2. Step 2: Convert to fraction form
    3,326.68/4,991.04 = 1,478.28/x
  3. Step 3: Cross multiply
    3,326.68x = 4,991.04 × 1,478.28
  4. Step 4: Simplify right side
    3,326.68x = 7,378,154.61
  5. Step 5: Solve for x
    x = 7,378,154.61/3,326.68
  6. Step 6: Final answer
    x = 2,217.87

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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.