Home / 3,931.96-5,424.42-3,331.90

Finding the Fourth Proportional to 3,931.96, 5,424.42 and 3,331.90

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Solution

The fourth proportional to 3,931.96, 5,424.42 and 3,331.90 is: 4,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.96 : 5,424.42 = 3,331.90 : x
  2. Step 2: Convert to fraction form
    3,931.96/5,424.42 = 3,331.90/x
  3. Step 3: Cross multiply
    3,931.96x = 5,424.42 × 3,331.90
  4. Step 4: Simplify right side
    3,931.96x = 18,073,625.00
  5. Step 5: Solve for x
    x = 18,073,625.00/3,931.96
  6. Step 6: Final answer
    x = 4,596.59

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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.