Home / 1,517.88-2,271.81-1,072.28

Finding the Fourth Proportional to 1,517.88, 2,271.81 and 1,072.28

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Solution

The fourth proportional to 1,517.88, 2,271.81 and 1,072.28 is: 1,604.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,517.88 : 2,271.81 = 1,072.28 : x
  2. Step 2: Convert to fraction form
    1,517.88/2,271.81 = 1,072.28/x
  3. Step 3: Cross multiply
    1,517.88x = 2,271.81 × 1,072.28
  4. Step 4: Simplify right side
    1,517.88x = 2,436,005.39
  5. Step 5: Solve for x
    x = 2,436,005.39/1,517.88
  6. Step 6: Final answer
    x = 1,604.87

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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.