Home / 2,196.80-3,302.40-2,067.20

Finding the Fourth Proportional to 2,196.80, 3,302.40 and 2,067.20

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Solution

The fourth proportional to 2,196.80, 3,302.40 and 2,067.20 is: 3,107.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196.80 : 3,302.40 = 2,067.20 : x
  2. Step 2: Convert to fraction form
    2,196.80/3,302.40 = 2,067.20/x
  3. Step 3: Cross multiply
    2,196.80x = 3,302.40 × 2,067.20
  4. Step 4: Simplify right side
    2,196.80x = 6,826,721.28
  5. Step 5: Solve for x
    x = 6,826,721.28/2,196.80
  6. Step 6: Final answer
    x = 3,107.58

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1.5x scale

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.