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Finding the Fourth Proportional to 3,613.25, 4,986.29 and 1,957.25

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Solution

The fourth proportional to 3,613.25, 4,986.29 and 1,957.25 is: 2,701.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613.25 : 4,986.29 = 1,957.25 : x
  2. Step 2: Convert to fraction form
    3,613.25/4,986.29 = 1,957.25/x
  3. Step 3: Cross multiply
    3,613.25x = 4,986.29 × 1,957.25
  4. Step 4: Simplify right side
    3,613.25x = 9,759,406.32
  5. Step 5: Solve for x
    x = 9,759,406.32/3,613.25
  6. Step 6: Final answer
    x = 2,701.01

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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.