Home / 3,357.20-5,040.60-1,899.20

Finding the Fourth Proportional to 3,357.20, 5,040.60 and 1,899.20

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Solution

The fourth proportional to 3,357.20, 5,040.60 and 1,899.20 is: 2,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,357.20 : 5,040.60 = 1,899.20 : x
  2. Step 2: Convert to fraction form
    3,357.20/5,040.60 = 1,899.20/x
  3. Step 3: Cross multiply
    3,357.20x = 5,040.60 × 1,899.20
  4. Step 4: Simplify right side
    3,357.20x = 9,573,107.52
  5. Step 5: Solve for x
    x = 9,573,107.52/3,357.20
  6. Step 6: Final answer
    x = 2,851.52

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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.