Home / 6,147.56-8,480.40-4,158.79

Finding the Fourth Proportional to 6,147.56, 8,480.40 and 4,158.79

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Solution

The fourth proportional to 6,147.56, 8,480.40 and 4,158.79 is: 5,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.56 : 8,480.40 = 4,158.79 : x
  2. Step 2: Convert to fraction form
    6,147.56/8,480.40 = 4,158.79/x
  3. Step 3: Cross multiply
    6,147.56x = 8,480.40 × 4,158.79
  4. Step 4: Simplify right side
    6,147.56x = 35,268,202.72
  5. Step 5: Solve for x
    x = 35,268,202.72/6,147.56
  6. Step 6: Final answer
    x = 5,736.94

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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.