Home / 3,391.80-5,087.01-926.41

Finding the Fourth Proportional to 3,391.80, 5,087.01 and 926.41

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Solution

The fourth proportional to 3,391.80, 5,087.01 and 926.41 is: 1,389.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.80 : 5,087.01 = 926.41 : x
  2. Step 2: Convert to fraction form
    3,391.80/5,087.01 = 926.41/x
  3. Step 3: Cross multiply
    3,391.80x = 5,087.01 × 926.41
  4. Step 4: Simplify right side
    3,391.80x = 4,712,652.02
  5. Step 5: Solve for x
    x = 4,712,652.02/3,391.80
  6. Step 6: Final answer
    x = 1,389.43

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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.