Home / 3,337.20-4,600.80-3,191.40

Finding the Fourth Proportional to 3,337.20, 4,600.80 and 3,191.40

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Solution

The fourth proportional to 3,337.20, 4,600.80 and 3,191.40 is: 4,399.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,337.20 : 4,600.80 = 3,191.40 : x
  2. Step 2: Convert to fraction form
    3,337.20/4,600.80 = 3,191.40/x
  3. Step 3: Cross multiply
    3,337.20x = 4,600.80 × 3,191.40
  4. Step 4: Simplify right side
    3,337.20x = 14,682,993.12
  5. Step 5: Solve for x
    x = 14,682,993.12/3,337.20
  6. Step 6: Final answer
    x = 4,399.79

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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.