Home / 1,517.92-2,271.78-1,087.96

Finding the Fourth Proportional to 1,517.92, 2,271.78 and 1,087.96

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Solution

The fourth proportional to 1,517.92, 2,271.78 and 1,087.96 is: 1,628.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.92 : 2,271.78 = 1,087.96 : x
  2. Step 2: Convert to fraction form
    1,517.92/2,271.78 = 1,087.96/x
  3. Step 3: Cross multiply
    1,517.92x = 2,271.78 × 1,087.96
  4. Step 4: Simplify right side
    1,517.92x = 2,471,605.77
  5. Step 5: Solve for x
    x = 2,471,605.77/1,517.92
  6. Step 6: Final answer
    x = 1,628.28

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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.