Home / 3,116.56-4,672.28-2,126.64

Finding the Fourth Proportional to 3,116.56, 4,672.28 and 2,126.64

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Solution

The fourth proportional to 3,116.56, 4,672.28 and 2,126.64 is: 3,188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.56 : 4,672.28 = 2,126.64 : x
  2. Step 2: Convert to fraction form
    3,116.56/4,672.28 = 2,126.64/x
  3. Step 3: Cross multiply
    3,116.56x = 4,672.28 × 2,126.64
  4. Step 4: Simplify right side
    3,116.56x = 9,936,257.54
  5. Step 5: Solve for x
    x = 9,936,257.54/3,116.56
  6. Step 6: Final answer
    x = 3,188.21

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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.