Home / 3,321.57-4,979.61-1,371.51

Finding the Fourth Proportional to 3,321.57, 4,979.61 and 1,371.51

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Solution

The fourth proportional to 3,321.57, 4,979.61 and 1,371.51 is: 2,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.57 : 4,979.61 = 1,371.51 : x
  2. Step 2: Convert to fraction form
    3,321.57/4,979.61 = 1,371.51/x
  3. Step 3: Cross multiply
    3,321.57x = 4,979.61 × 1,371.51
  4. Step 4: Simplify right side
    3,321.57x = 6,829,584.91
  5. Step 5: Solve for x
    x = 6,829,584.91/3,321.57
  6. Step 6: Final answer
    x = 2,056.13

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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.