Home / 6,142.65-8,470.17-4,149.75

Finding the Fourth Proportional to 6,142.65, 8,470.17 and 4,149.75

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Solution

The fourth proportional to 6,142.65, 8,470.17 and 4,149.75 is: 5,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,142.65 : 8,470.17 = 4,149.75 : x
  2. Step 2: Convert to fraction form
    6,142.65/8,470.17 = 4,149.75/x
  3. Step 3: Cross multiply
    6,142.65x = 8,470.17 × 4,149.75
  4. Step 4: Simplify right side
    6,142.65x = 35,149,087.96
  5. Step 5: Solve for x
    x = 35,149,087.96/6,142.65
  6. Step 6: Final answer
    x = 5,722.14

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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.