Home / 1,717.92-2,578.08-1,069.12

Finding the Fourth Proportional to 1,717.92, 2,578.08 and 1,069.12

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Solution

The fourth proportional to 1,717.92, 2,578.08 and 1,069.12 is: 1,604.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,717.92 : 2,578.08 = 1,069.12 : x
  2. Step 2: Convert to fraction form
    1,717.92/2,578.08 = 1,069.12/x
  3. Step 3: Cross multiply
    1,717.92x = 2,578.08 × 1,069.12
  4. Step 4: Simplify right side
    1,717.92x = 2,756,276.89
  5. Step 5: Solve for x
    x = 2,756,276.89/1,717.92
  6. Step 6: Final answer
    x = 1,604.43

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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.