Home / 5,742.20-8,612.22-2,818.64

Finding the Fourth Proportional to 5,742.20, 8,612.22 and 2,818.64

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Solution

The fourth proportional to 5,742.20, 8,612.22 and 2,818.64 is: 4,227.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.20 : 8,612.22 = 2,818.64 : x
  2. Step 2: Convert to fraction form
    5,742.20/8,612.22 = 2,818.64/x
  3. Step 3: Cross multiply
    5,742.20x = 8,612.22 × 2,818.64
  4. Step 4: Simplify right side
    5,742.20x = 24,274,747.78
  5. Step 5: Solve for x
    x = 24,274,747.78/5,742.20
  6. Step 6: Final answer
    x = 4,227.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.