Home / 5,871.20-8,102.19-3,218.60

Finding the Fourth Proportional to 5,871.20, 8,102.19 and 3,218.60

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Solution

The fourth proportional to 5,871.20, 8,102.19 and 3,218.60 is: 4,441.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.20 : 8,102.19 = 3,218.60 : x
  2. Step 2: Convert to fraction form
    5,871.20/8,102.19 = 3,218.60/x
  3. Step 3: Cross multiply
    5,871.20x = 8,102.19 × 3,218.60
  4. Step 4: Simplify right side
    5,871.20x = 26,077,708.73
  5. Step 5: Solve for x
    x = 26,077,708.73/5,871.20
  6. Step 6: Final answer
    x = 4,441.63

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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.