Home / 3,443.50-5,165.25-1,391.50

Finding the Fourth Proportional to 3,443.50, 5,165.25 and 1,391.50

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Solution

The fourth proportional to 3,443.50, 5,165.25 and 1,391.50 is: 2,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,443.50 : 5,165.25 = 1,391.50 : x
  2. Step 2: Convert to fraction form
    3,443.50/5,165.25 = 1,391.50/x
  3. Step 3: Cross multiply
    3,443.50x = 5,165.25 × 1,391.50
  4. Step 4: Simplify right side
    3,443.50x = 7,187,445.38
  5. Step 5: Solve for x
    x = 7,187,445.38/3,443.50
  6. Step 6: Final answer
    x = 2,087.25

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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.