Home / 2,720.67-4,077.81-1,160.22

Finding the Fourth Proportional to 2,720.67, 4,077.81 and 1,160.22

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Solution

The fourth proportional to 2,720.67, 4,077.81 and 1,160.22 is: 1,738.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.67 : 4,077.81 = 1,160.22 : x
  2. Step 2: Convert to fraction form
    2,720.67/4,077.81 = 1,160.22/x
  3. Step 3: Cross multiply
    2,720.67x = 4,077.81 × 1,160.22
  4. Step 4: Simplify right side
    2,720.67x = 4,731,156.72
  5. Step 5: Solve for x
    x = 4,731,156.72/2,720.67
  6. Step 6: Final answer
    x = 1,738.97

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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.