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Finding the Fourth Proportional to 1,863.59, 2,797.01 and 1,215.23

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Solution

The fourth proportional to 1,863.59, 2,797.01 and 1,215.23 is: 1,823.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.59 : 2,797.01 = 1,215.23 : x
  2. Step 2: Convert to fraction form
    1,863.59/2,797.01 = 1,215.23/x
  3. Step 3: Cross multiply
    1,863.59x = 2,797.01 × 1,215.23
  4. Step 4: Simplify right side
    1,863.59x = 3,399,004.39
  5. Step 5: Solve for x
    x = 3,399,004.39/1,863.59
  6. Step 6: Final answer
    x = 1,823.90

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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.