Home / 5,627.90-8,442.88-2,818.20

Finding the Fourth Proportional to 5,627.90, 8,442.88 and 2,818.20

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Solution

The fourth proportional to 5,627.90, 8,442.88 and 2,818.20 is: 4,227.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.90 : 8,442.88 = 2,818.20 : x
  2. Step 2: Convert to fraction form
    5,627.90/8,442.88 = 2,818.20/x
  3. Step 3: Cross multiply
    5,627.90x = 8,442.88 × 2,818.20
  4. Step 4: Simplify right side
    5,627.90x = 23,793,749.03
  5. Step 5: Solve for x
    x = 23,793,749.03/5,627.90
  6. Step 6: Final answer
    x = 4,227.82

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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.