Home / 2,961.60-4,087.92-2,077.62

Finding the Fourth Proportional to 2,961.60, 4,087.92 and 2,077.62

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Solution

The fourth proportional to 2,961.60, 4,087.92 and 2,077.62 is: 2,867.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.60 : 4,087.92 = 2,077.62 : x
  2. Step 2: Convert to fraction form
    2,961.60/4,087.92 = 2,077.62/x
  3. Step 3: Cross multiply
    2,961.60x = 4,087.92 × 2,077.62
  4. Step 4: Simplify right side
    2,961.60x = 8,493,144.35
  5. Step 5: Solve for x
    x = 8,493,144.35/2,961.60
  6. Step 6: Final answer
    x = 2,867.76

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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.