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Finding the Fourth Proportional to 2,881.11, 3,976.02 and 1,762.03

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Solution

The fourth proportional to 2,881.11, 3,976.02 and 1,762.03 is: 2,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.11 : 3,976.02 = 1,762.03 : x
  2. Step 2: Convert to fraction form
    2,881.11/3,976.02 = 1,762.03/x
  3. Step 3: Cross multiply
    2,881.11x = 3,976.02 × 1,762.03
  4. Step 4: Simplify right side
    2,881.11x = 7,005,864.88
  5. Step 5: Solve for x
    x = 7,005,864.88/2,881.11
  6. Step 6: Final answer
    x = 2,431.65

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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.