Home / 3,340.20-5,004.40-2,978.20

Finding the Fourth Proportional to 3,340.20, 5,004.40 and 2,978.20

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Solution

The fourth proportional to 3,340.20, 5,004.40 and 2,978.20 is: 4,462.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.20 : 5,004.40 = 2,978.20 : x
  2. Step 2: Convert to fraction form
    3,340.20/5,004.40 = 2,978.20/x
  3. Step 3: Cross multiply
    3,340.20x = 5,004.40 × 2,978.20
  4. Step 4: Simplify right side
    3,340.20x = 14,904,104.08
  5. Step 5: Solve for x
    x = 14,904,104.08/3,340.20
  6. Step 6: Final answer
    x = 4,462.04

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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.