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Finding the Fourth Proportional to 3,613.38, 4,986.46 and 1,957.38

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Solution

The fourth proportional to 3,613.38, 4,986.46 and 1,957.38 is: 2,701.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.38 : 4,986.46 = 1,957.38 : x
  2. Step 2: Convert to fraction form
    3,613.38/4,986.46 = 1,957.38/x
  3. Step 3: Cross multiply
    3,613.38x = 4,986.46 × 1,957.38
  4. Step 4: Simplify right side
    3,613.38x = 9,760,397.07
  5. Step 5: Solve for x
    x = 9,760,397.07/3,613.38
  6. Step 6: Final answer
    x = 2,701.18

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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.