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Finding the Fourth Proportional to 2,720.58, 4,080.07 and 1,160.57

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Solution

The fourth proportional to 2,720.58, 4,080.07 and 1,160.57 is: 1,740.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.58 : 4,080.07 = 1,160.57 : x
  2. Step 2: Convert to fraction form
    2,720.58/4,080.07 = 1,160.57/x
  3. Step 3: Cross multiply
    2,720.58x = 4,080.07 × 1,160.57
  4. Step 4: Simplify right side
    2,720.58x = 4,735,206.84
  5. Step 5: Solve for x
    x = 4,735,206.84/2,720.58
  6. Step 6: Final answer
    x = 1,740.51

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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.