Home / 6,339.60-8,745.73-4,102.20

Finding the Fourth Proportional to 6,339.60, 8,745.73 and 4,102.20

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Solution

The fourth proportional to 6,339.60, 8,745.73 and 4,102.20 is: 5,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339.60 : 8,745.73 = 4,102.20 : x
  2. Step 2: Convert to fraction form
    6,339.60/8,745.73 = 4,102.20/x
  3. Step 3: Cross multiply
    6,339.60x = 8,745.73 × 4,102.20
  4. Step 4: Simplify right side
    6,339.60x = 35,876,733.61
  5. Step 5: Solve for x
    x = 35,876,733.61/6,339.60
  6. Step 6: Final answer
    x = 5,659.15

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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.