Home / 2,689.71-4,033.19-1,372.04

Finding the Fourth Proportional to 2,689.71, 4,033.19 and 1,372.04

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Solution

The fourth proportional to 2,689.71, 4,033.19 and 1,372.04 is: 2,057.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.71 : 4,033.19 = 1,372.04 : x
  2. Step 2: Convert to fraction form
    2,689.71/4,033.19 = 1,372.04/x
  3. Step 3: Cross multiply
    2,689.71x = 4,033.19 × 1,372.04
  4. Step 4: Simplify right side
    2,689.71x = 5,533,696.40
  5. Step 5: Solve for x
    x = 5,533,696.40/2,689.71
  6. Step 6: Final answer
    x = 2,057.36

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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.