Home / 3,861.23-5,330.68-2,680.25

Finding the Fourth Proportional to 3,861.23, 5,330.68 and 2,680.25

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Solution

The fourth proportional to 3,861.23, 5,330.68 and 2,680.25 is: 3,700.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.23 : 5,330.68 = 2,680.25 : x
  2. Step 2: Convert to fraction form
    3,861.23/5,330.68 = 2,680.25/x
  3. Step 3: Cross multiply
    3,861.23x = 5,330.68 × 2,680.25
  4. Step 4: Simplify right side
    3,861.23x = 14,287,521.72
  5. Step 5: Solve for x
    x = 14,287,521.72/3,861.23
  6. Step 6: Final answer
    x = 3,700.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.