Home / 2,782.85-4,179.05-2,471.21

Finding the Fourth Proportional to 2,782.85, 4,179.05 and 2,471.21

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Solution

The fourth proportional to 2,782.85, 4,179.05 and 2,471.21 is: 3,711.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,782.85 : 4,179.05 = 2,471.21 : x
  2. Step 2: Convert to fraction form
    2,782.85/4,179.05 = 2,471.21/x
  3. Step 3: Cross multiply
    2,782.85x = 4,179.05 × 2,471.21
  4. Step 4: Simplify right side
    2,782.85x = 10,327,310.15
  5. Step 5: Solve for x
    x = 10,327,310.15/2,782.85
  6. Step 6: Final answer
    x = 3,711.06

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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.