Home / 2,720.18-4,080.41-1,160.39

Finding the Fourth Proportional to 2,720.18, 4,080.41 and 1,160.39

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Solution

The fourth proportional to 2,720.18, 4,080.41 and 1,160.39 is: 1,740.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.18 : 4,080.41 = 1,160.39 : x
  2. Step 2: Convert to fraction form
    2,720.18/4,080.41 = 1,160.39/x
  3. Step 3: Cross multiply
    2,720.18x = 4,080.41 × 1,160.39
  4. Step 4: Simplify right side
    2,720.18x = 4,734,866.96
  5. Step 5: Solve for x
    x = 4,734,866.96/2,720.18
  6. Step 6: Final answer
    x = 1,740.64

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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.