Home / 2,720.21-3,755.16-1,600.79

Finding the Fourth Proportional to 2,720.21, 3,755.16 and 1,600.79

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Solution

The fourth proportional to 2,720.21, 3,755.16 and 1,600.79 is: 2,209.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.21 : 3,755.16 = 1,600.79 : x
  2. Step 2: Convert to fraction form
    2,720.21/3,755.16 = 1,600.79/x
  3. Step 3: Cross multiply
    2,720.21x = 3,755.16 × 1,600.79
  4. Step 4: Simplify right side
    2,720.21x = 6,011,203.80
  5. Step 5: Solve for x
    x = 6,011,203.80/2,720.21
  6. Step 6: Final answer
    x = 2,209.83

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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.