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Finding the Fourth Proportional to 2,073.00, 2,860.79 and 1,188.97

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Solution

The fourth proportional to 2,073.00, 2,860.79 and 1,188.97 is: 1,640.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.00 : 2,860.79 = 1,188.97 : x
  2. Step 2: Convert to fraction form
    2,073.00/2,860.79 = 1,188.97/x
  3. Step 3: Cross multiply
    2,073.00x = 2,860.79 × 1,188.97
  4. Step 4: Simplify right side
    2,073.00x = 3,401,396.46
  5. Step 5: Solve for x
    x = 3,401,396.46/2,073.00
  6. Step 6: Final answer
    x = 1,640.81

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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.