Home / 2,720.74-4,080.43-1,159.97

Finding the Fourth Proportional to 2,720.74, 4,080.43 and 1,159.97

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Solution

The fourth proportional to 2,720.74, 4,080.43 and 1,159.97 is: 1,739.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.74 : 4,080.43 = 1,159.97 : x
  2. Step 2: Convert to fraction form
    2,720.74/4,080.43 = 1,159.97/x
  3. Step 3: Cross multiply
    2,720.74x = 4,080.43 × 1,159.97
  4. Step 4: Simplify right side
    2,720.74x = 4,733,173.86
  5. Step 5: Solve for x
    x = 4,733,173.86/2,720.74
  6. Step 6: Final answer
    x = 1,739.66

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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.