Home / 3,612.20-4,978.14-2,726.60

Finding the Fourth Proportional to 3,612.20, 4,978.14 and 2,726.60

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Solution

The fourth proportional to 3,612.20, 4,978.14 and 2,726.60 is: 3,757.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.20 : 4,978.14 = 2,726.60 : x
  2. Step 2: Convert to fraction form
    3,612.20/4,978.14 = 2,726.60/x
  3. Step 3: Cross multiply
    3,612.20x = 4,978.14 × 2,726.60
  4. Step 4: Simplify right side
    3,612.20x = 13,573,396.52
  5. Step 5: Solve for x
    x = 13,573,396.52/3,612.20
  6. Step 6: Final answer
    x = 3,757.65

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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.