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Finding the Fourth Proportional to 6,150.40, 8,515.20 and 5,843.20

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Solution

The fourth proportional to 6,150.40, 8,515.20 and 5,843.20 is: 8,089.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,150.40 : 8,515.20 = 5,843.20 : x
  2. Step 2: Convert to fraction form
    6,150.40/8,515.20 = 5,843.20/x
  3. Step 3: Cross multiply
    6,150.40x = 8,515.20 × 5,843.20
  4. Step 4: Simplify right side
    6,150.40x = 49,756,016.64
  5. Step 5: Solve for x
    x = 49,756,016.64/6,150.40
  6. Step 6: Final answer
    x = 8,089.88

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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.