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Finding the Fourth Proportional to 2,573.85, 3,861.24 and 1,965.12

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Solution

The fourth proportional to 2,573.85, 3,861.24 and 1,965.12 is: 2,948.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,573.85 : 3,861.24 = 1,965.12 : x
  2. Step 2: Convert to fraction form
    2,573.85/3,861.24 = 1,965.12/x
  3. Step 3: Cross multiply
    2,573.85x = 3,861.24 × 1,965.12
  4. Step 4: Simplify right side
    2,573.85x = 7,587,799.95
  5. Step 5: Solve for x
    x = 7,587,799.95/2,573.85
  6. Step 6: Final answer
    x = 2,948.04

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Double scale
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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.