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Finding the Fourth Proportional to 2,613.54, 3,899.99 and 2,380.68

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Solution

The fourth proportional to 2,613.54, 3,899.99 and 2,380.68 is: 3,552.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.54 : 3,899.99 = 2,380.68 : x
  2. Step 2: Convert to fraction form
    2,613.54/3,899.99 = 2,380.68/x
  3. Step 3: Cross multiply
    2,613.54x = 3,899.99 × 2,380.68
  4. Step 4: Simplify right side
    2,613.54x = 9,284,616.29
  5. Step 5: Solve for x
    x = 9,284,616.29/2,613.54
  6. Step 6: Final answer
    x = 3,552.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.