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Finding the Fourth Proportional to 6,146.56, 8,479.02 and 4,157.79

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Solution

The fourth proportional to 6,146.56, 8,479.02 and 4,157.79 is: 5,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,146.56 : 8,479.02 = 4,157.79 : x
  2. Step 2: Convert to fraction form
    6,146.56/8,479.02 = 4,157.79/x
  3. Step 3: Cross multiply
    6,146.56x = 8,479.02 × 4,157.79
  4. Step 4: Simplify right side
    6,146.56x = 35,253,984.57
  5. Step 5: Solve for x
    x = 35,253,984.57/6,146.56
  6. Step 6: Final answer
    x = 5,735.56

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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.