Home / 3,319.59-4,979.40-1,371.85

Finding the Fourth Proportional to 3,319.59, 4,979.40 and 1,371.85

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Solution

The fourth proportional to 3,319.59, 4,979.40 and 1,371.85 is: 2,057.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,319.59 : 4,979.40 = 1,371.85 : x
  2. Step 2: Convert to fraction form
    3,319.59/4,979.40 = 1,371.85/x
  3. Step 3: Cross multiply
    3,319.59x = 4,979.40 × 1,371.85
  4. Step 4: Simplify right side
    3,319.59x = 6,830,972.30
  5. Step 5: Solve for x
    x = 6,830,972.30/3,319.59
  6. Step 6: Final answer
    x = 2,057.77

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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.