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Finding the Fourth Proportional to 2,098.01, 3,147.39 and 864.73

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Solution

The fourth proportional to 2,098.01, 3,147.39 and 864.73 is: 1,297.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,098.01 : 3,147.39 = 864.73 : x
  2. Step 2: Convert to fraction form
    2,098.01/3,147.39 = 864.73/x
  3. Step 3: Cross multiply
    2,098.01x = 3,147.39 × 864.73
  4. Step 4: Simplify right side
    2,098.01x = 2,721,642.55
  5. Step 5: Solve for x
    x = 2,721,642.55/2,098.01
  6. Step 6: Final answer
    x = 1,297.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.