Home / 2,720.11-3,755.66-2,402.95

Finding the Fourth Proportional to 2,720.11, 3,755.66 and 2,402.95

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Solution

The fourth proportional to 2,720.11, 3,755.66 and 2,402.95 is: 3,317.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.11 : 3,755.66 = 2,402.95 : x
  2. Step 2: Convert to fraction form
    2,720.11/3,755.66 = 2,402.95/x
  3. Step 3: Cross multiply
    2,720.11x = 3,755.66 × 2,402.95
  4. Step 4: Simplify right side
    2,720.11x = 9,024,651.18
  5. Step 5: Solve for x
    x = 9,024,651.18/2,720.11
  6. Step 6: Final answer
    x = 3,317.75

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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.