Home / 2,119.27-3,179.60-1,023.76

Finding the Fourth Proportional to 2,119.27, 3,179.60 and 1,023.76

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Solution

The fourth proportional to 2,119.27, 3,179.60 and 1,023.76 is: 1,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.27 : 3,179.60 = 1,023.76 : x
  2. Step 2: Convert to fraction form
    2,119.27/3,179.60 = 1,023.76/x
  3. Step 3: Cross multiply
    2,119.27x = 3,179.60 × 1,023.76
  4. Step 4: Simplify right side
    2,119.27x = 3,255,147.30
  5. Step 5: Solve for x
    x = 3,255,147.30/2,119.27
  6. Step 6: Final answer
    x = 1,535.98

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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.