Home / 5,512.20-7,607-3,122.13

Finding the Fourth Proportional to 5,512.20, 7,607 and 3,122.13

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Solution

The fourth proportional to 5,512.20, 7,607 and 3,122.13 is: 4,308.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,512.20 : 7,607 = 3,122.13 : x
  2. Step 2: Convert to fraction form
    5,512.20/7,607 = 3,122.13/x
  3. Step 3: Cross multiply
    5,512.20x = 7,607 × 3,122.13
  4. Step 4: Simplify right side
    5,512.20x = 23,750,042.91
  5. Step 5: Solve for x
    x = 23,750,042.91/5,512.20
  6. Step 6: Final answer
    x = 4,308.63

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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.