Home / 6,245.64-8,615.25-4,120.44

Finding the Fourth Proportional to 6,245.64, 8,615.25 and 4,120.44

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Solution

The fourth proportional to 6,245.64, 8,615.25 and 4,120.44 is: 5,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,245.64 : 8,615.25 = 4,120.44 : x
  2. Step 2: Convert to fraction form
    6,245.64/8,615.25 = 4,120.44/x
  3. Step 3: Cross multiply
    6,245.64x = 8,615.25 × 4,120.44
  4. Step 4: Simplify right side
    6,245.64x = 35,498,620.71
  5. Step 5: Solve for x
    x = 35,498,620.71/6,245.64
  6. Step 6: Final answer
    x = 5,683.74

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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.