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Finding the Fourth Proportional to 2,402.29, 3,604.40 and 863.41

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Solution

The fourth proportional to 2,402.29, 3,604.40 and 863.41 is: 1,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.29 : 3,604.40 = 863.41 : x
  2. Step 2: Convert to fraction form
    2,402.29/3,604.40 = 863.41/x
  3. Step 3: Cross multiply
    2,402.29x = 3,604.40 × 863.41
  4. Step 4: Simplify right side
    2,402.29x = 3,112,075.00
  5. Step 5: Solve for x
    x = 3,112,075.00/2,402.29
  6. Step 6: Final answer
    x = 1,295.46

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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.