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Finding the Fourth Proportional to 2,616.90, 3,613.04 and 2,339.88

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Solution

The fourth proportional to 2,616.90, 3,613.04 and 2,339.88 is: 3,230.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.90 : 3,613.04 = 2,339.88 : x
  2. Step 2: Convert to fraction form
    2,616.90/3,613.04 = 2,339.88/x
  3. Step 3: Cross multiply
    2,616.90x = 3,613.04 × 2,339.88
  4. Step 4: Simplify right side
    2,616.90x = 8,454,080.04
  5. Step 5: Solve for x
    x = 8,454,080.04/2,616.90
  6. Step 6: Final answer
    x = 3,230.57

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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.