Home / 2,861.82-4,290.30-2,725.74

Finding the Fourth Proportional to 2,861.82, 4,290.30 and 2,725.74

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Solution

The fourth proportional to 2,861.82, 4,290.30 and 2,725.74 is: 4,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.82 : 4,290.30 = 2,725.74 : x
  2. Step 2: Convert to fraction form
    2,861.82/4,290.30 = 2,725.74/x
  3. Step 3: Cross multiply
    2,861.82x = 4,290.30 × 2,725.74
  4. Step 4: Simplify right side
    2,861.82x = 11,694,242.32
  5. Step 5: Solve for x
    x = 11,694,242.32/2,861.82
  6. Step 6: Final answer
    x = 4,086.30

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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.