Home / 6,138.28-8,470.90-3,343.80

Finding the Fourth Proportional to 6,138.28, 8,470.90 and 3,343.80

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Solution

The fourth proportional to 6,138.28, 8,470.90 and 3,343.80 is: 4,614.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,138.28 : 8,470.90 = 3,343.80 : x
  2. Step 2: Convert to fraction form
    6,138.28/8,470.90 = 3,343.80/x
  3. Step 3: Cross multiply
    6,138.28x = 8,470.90 × 3,343.80
  4. Step 4: Simplify right side
    6,138.28x = 28,324,995.42
  5. Step 5: Solve for x
    x = 28,324,995.42/6,138.28
  6. Step 6: Final answer
    x = 4,614.48

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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.