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Finding the Fourth Proportional to 3,612.52, 4,985.30 and 2,040.52

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Solution

The fourth proportional to 3,612.52, 4,985.30 and 2,040.52 is: 2,815.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.52 : 4,985.30 = 2,040.52 : x
  2. Step 2: Convert to fraction form
    3,612.52/4,985.30 = 2,040.52/x
  3. Step 3: Cross multiply
    3,612.52x = 4,985.30 × 2,040.52
  4. Step 4: Simplify right side
    3,612.52x = 10,172,604.36
  5. Step 5: Solve for x
    x = 10,172,604.36/3,612.52
  6. Step 6: Final answer
    x = 2,815.93

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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.