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Finding the Fourth Proportional to 1,462.68, 2,018.42 and 799.40

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Solution

The fourth proportional to 1,462.68, 2,018.42 and 799.40 is: 1,103.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,462.68 : 2,018.42 = 799.40 : x
  2. Step 2: Convert to fraction form
    1,462.68/2,018.42 = 799.40/x
  3. Step 3: Cross multiply
    1,462.68x = 2,018.42 × 799.40
  4. Step 4: Simplify right side
    1,462.68x = 1,613,524.95
  5. Step 5: Solve for x
    x = 1,613,524.95/1,462.68
  6. Step 6: Final answer
    x = 1,103.13

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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.