Home / 3,912.95-5,399.85-2,341.41

Finding the Fourth Proportional to 3,912.95, 5,399.85 and 2,341.41

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Solution

The fourth proportional to 3,912.95, 5,399.85 and 2,341.41 is: 3,231.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,912.95 : 5,399.85 = 2,341.41 : x
  2. Step 2: Convert to fraction form
    3,912.95/5,399.85 = 2,341.41/x
  3. Step 3: Cross multiply
    3,912.95x = 5,399.85 × 2,341.41
  4. Step 4: Simplify right side
    3,912.95x = 12,643,262.79
  5. Step 5: Solve for x
    x = 12,643,262.79/3,912.95
  6. Step 6: Final answer
    x = 3,231.14

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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.