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Finding the Fourth Proportional to 1,901.97, 2,854.04 and 806.22

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Solution

The fourth proportional to 1,901.97, 2,854.04 and 806.22 is: 1,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901.97 : 2,854.04 = 806.22 : x
  2. Step 2: Convert to fraction form
    1,901.97/2,854.04 = 806.22/x
  3. Step 3: Cross multiply
    1,901.97x = 2,854.04 × 806.22
  4. Step 4: Simplify right side
    1,901.97x = 2,300,980.10
  5. Step 5: Solve for x
    x = 2,300,980.10/1,901.97
  6. Step 6: Final answer
    x = 1,209.79

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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.