Home / 2,879.28-4,319.10-1,954.44

Finding the Fourth Proportional to 2,879.28, 4,319.10 and 1,954.44

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Solution

The fourth proportional to 2,879.28, 4,319.10 and 1,954.44 is: 2,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.28 : 4,319.10 = 1,954.44 : x
  2. Step 2: Convert to fraction form
    2,879.28/4,319.10 = 1,954.44/x
  3. Step 3: Cross multiply
    2,879.28x = 4,319.10 × 1,954.44
  4. Step 4: Simplify right side
    2,879.28x = 8,441,421.80
  5. Step 5: Solve for x
    x = 8,441,421.80/2,879.28
  6. Step 6: Final answer
    x = 2,931.78

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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.