Home / 3,116.88-4,293.81-2,531.25

Finding the Fourth Proportional to 3,116.88, 4,293.81 and 2,531.25

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Solution

The fourth proportional to 3,116.88, 4,293.81 and 2,531.25 is: 3,487.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.88 : 4,293.81 = 2,531.25 : x
  2. Step 2: Convert to fraction form
    3,116.88/4,293.81 = 2,531.25/x
  3. Step 3: Cross multiply
    3,116.88x = 4,293.81 × 2,531.25
  4. Step 4: Simplify right side
    3,116.88x = 10,868,706.56
  5. Step 5: Solve for x
    x = 10,868,706.56/3,116.88
  6. Step 6: Final answer
    x = 3,487.05

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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.