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Finding the Fourth Proportional to 1,498.55, 2,067.97 and 869.07

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Solution

The fourth proportional to 1,498.55, 2,067.97 and 869.07 is: 1,199.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,498.55 : 2,067.97 = 869.07 : x
  2. Step 2: Convert to fraction form
    1,498.55/2,067.97 = 869.07/x
  3. Step 3: Cross multiply
    1,498.55x = 2,067.97 × 869.07
  4. Step 4: Simplify right side
    1,498.55x = 1,797,202.14
  5. Step 5: Solve for x
    x = 1,797,202.14/1,498.55
  6. Step 6: Final answer
    x = 1,199.29

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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.