Home / 3,116.88-4,671-2,635.20

Finding the Fourth Proportional to 3,116.88, 4,671 and 2,635.20

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Solution

The fourth proportional to 3,116.88, 4,671 and 2,635.20 is: 3,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.88 : 4,671 = 2,635.20 : x
  2. Step 2: Convert to fraction form
    3,116.88/4,671 = 2,635.20/x
  3. Step 3: Cross multiply
    3,116.88x = 4,671 × 2,635.20
  4. Step 4: Simplify right side
    3,116.88x = 12,309,019.20
  5. Step 5: Solve for x
    x = 12,309,019.20/3,116.88
  6. Step 6: Final answer
    x = 3,949.15

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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.