Home / 3,132-4,312.44-2,799.36

Finding the Fourth Proportional to 3,132, 4,312.44 and 2,799.36

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Solution

The fourth proportional to 3,132, 4,312.44 and 2,799.36 is: 3,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132 : 4,312.44 = 2,799.36 : x
  2. Step 2: Convert to fraction form
    3,132/4,312.44 = 2,799.36/x
  3. Step 3: Cross multiply
    3,132x = 4,312.44 × 2,799.36
  4. Step 4: Simplify right side
    3,132x = 12,072,072.04
  5. Step 5: Solve for x
    x = 12,072,072.04/3,132
  6. Step 6: Final answer
    x = 3,854.43

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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.