Home / 1,402.04-2,104.50-991.64

Finding the Fourth Proportional to 1,402.04, 2,104.50 and 991.64

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Solution

The fourth proportional to 1,402.04, 2,104.50 and 991.64 is: 1,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402.04 : 2,104.50 = 991.64 : x
  2. Step 2: Convert to fraction form
    1,402.04/2,104.50 = 991.64/x
  3. Step 3: Cross multiply
    1,402.04x = 2,104.50 × 991.64
  4. Step 4: Simplify right side
    1,402.04x = 2,086,906.38
  5. Step 5: Solve for x
    x = 2,086,906.38/1,402.04
  6. Step 6: Final answer
    x = 1,488.48

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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.