Home / 1,718.20-2,578.11-1,689.04

Finding the Fourth Proportional to 1,718.20, 2,578.11 and 1,689.04

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Solution

The fourth proportional to 1,718.20, 2,578.11 and 1,689.04 is: 2,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,718.20 : 2,578.11 = 1,689.04 : x
  2. Step 2: Convert to fraction form
    1,718.20/2,578.11 = 1,689.04/x
  3. Step 3: Cross multiply
    1,718.20x = 2,578.11 × 1,689.04
  4. Step 4: Simplify right side
    1,718.20x = 4,354,530.91
  5. Step 5: Solve for x
    x = 4,354,530.91/1,718.20
  6. Step 6: Final answer
    x = 2,534.36

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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.