Home / 3,168.40-4,363.32-2,282.80

Finding the Fourth Proportional to 3,168.40, 4,363.32 and 2,282.80

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Solution

The fourth proportional to 3,168.40, 4,363.32 and 2,282.80 is: 3,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.40 : 4,363.32 = 2,282.80 : x
  2. Step 2: Convert to fraction form
    3,168.40/4,363.32 = 2,282.80/x
  3. Step 3: Cross multiply
    3,168.40x = 4,363.32 × 2,282.80
  4. Step 4: Simplify right side
    3,168.40x = 9,960,586.90
  5. Step 5: Solve for x
    x = 9,960,586.90/3,168.40
  6. Step 6: Final answer
    x = 3,143.73

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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.