Home / 3,318.18-4,575.48-2,198.76

Finding the Fourth Proportional to 3,318.18, 4,575.48 and 2,198.76

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Solution

The fourth proportional to 3,318.18, 4,575.48 and 2,198.76 is: 3,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.18 : 4,575.48 = 2,198.76 : x
  2. Step 2: Convert to fraction form
    3,318.18/4,575.48 = 2,198.76/x
  3. Step 3: Cross multiply
    3,318.18x = 4,575.48 × 2,198.76
  4. Step 4: Simplify right side
    3,318.18x = 10,060,382.40
  5. Step 5: Solve for x
    x = 10,060,382.40/3,318.18
  6. Step 6: Final answer
    x = 3,031.90

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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.