Home / 3,939.18-5,443.91-3,229.93

Finding the Fourth Proportional to 3,939.18, 5,443.91 and 3,229.93

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Solution

The fourth proportional to 3,939.18, 5,443.91 and 3,229.93 is: 4,463.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.18 : 5,443.91 = 3,229.93 : x
  2. Step 2: Convert to fraction form
    3,939.18/5,443.91 = 3,229.93/x
  3. Step 3: Cross multiply
    3,939.18x = 5,443.91 × 3,229.93
  4. Step 4: Simplify right side
    3,939.18x = 17,583,420.37
  5. Step 5: Solve for x
    x = 17,583,420.37/3,939.18
  6. Step 6: Final answer
    x = 4,463.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.