Home / 3,061.20-4,220.85-2,834.23

Finding the Fourth Proportional to 3,061.20, 4,220.85 and 2,834.23

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Solution

The fourth proportional to 3,061.20, 4,220.85 and 2,834.23 is: 3,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,061.20 : 4,220.85 = 2,834.23 : x
  2. Step 2: Convert to fraction form
    3,061.20/4,220.85 = 2,834.23/x
  3. Step 3: Cross multiply
    3,061.20x = 4,220.85 × 2,834.23
  4. Step 4: Simplify right side
    3,061.20x = 11,962,853.78
  5. Step 5: Solve for x
    x = 11,962,853.78/3,061.20
  6. Step 6: Final answer
    x = 3,907.90

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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.