Home / 3,318.98-4,979.28-1,371.74

Finding the Fourth Proportional to 3,318.98, 4,979.28 and 1,371.74

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Solution

The fourth proportional to 3,318.98, 4,979.28 and 1,371.74 is: 2,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.98 : 4,979.28 = 1,371.74 : x
  2. Step 2: Convert to fraction form
    3,318.98/4,979.28 = 1,371.74/x
  3. Step 3: Cross multiply
    3,318.98x = 4,979.28 × 1,371.74
  4. Step 4: Simplify right side
    3,318.98x = 6,830,277.55
  5. Step 5: Solve for x
    x = 6,830,277.55/3,318.98
  6. Step 6: Final answer
    x = 2,057.94

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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.