Home / 3,026.56-4,177.20-1,978.60

Finding the Fourth Proportional to 3,026.56, 4,177.20 and 1,978.60

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Solution

The fourth proportional to 3,026.56, 4,177.20 and 1,978.60 is: 2,730.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,026.56 : 4,177.20 = 1,978.60 : x
  2. Step 2: Convert to fraction form
    3,026.56/4,177.20 = 1,978.60/x
  3. Step 3: Cross multiply
    3,026.56x = 4,177.20 × 1,978.60
  4. Step 4: Simplify right side
    3,026.56x = 8,265,007.92
  5. Step 5: Solve for x
    x = 8,265,007.92/3,026.56
  6. Step 6: Final answer
    x = 2,730.83

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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.