Home / 3,612.72-4,985.28-2,040.96

Finding the Fourth Proportional to 3,612.72, 4,985.28 and 2,040.96

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Solution

The fourth proportional to 3,612.72, 4,985.28 and 2,040.96 is: 2,816.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.72 : 4,985.28 = 2,040.96 : x
  2. Step 2: Convert to fraction form
    3,612.72/4,985.28 = 2,040.96/x
  3. Step 3: Cross multiply
    3,612.72x = 4,985.28 × 2,040.96
  4. Step 4: Simplify right side
    3,612.72x = 10,174,757.07
  5. Step 5: Solve for x
    x = 10,174,757.07/3,612.72
  6. Step 6: Final answer
    x = 2,816.37

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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.