Home / 2,195.38-3,029.64-1,200.64

Finding the Fourth Proportional to 2,195.38, 3,029.64 and 1,200.64

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Solution

The fourth proportional to 2,195.38, 3,029.64 and 1,200.64 is: 1,656.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,195.38 : 3,029.64 = 1,200.64 : x
  2. Step 2: Convert to fraction form
    2,195.38/3,029.64 = 1,200.64/x
  3. Step 3: Cross multiply
    2,195.38x = 3,029.64 × 1,200.64
  4. Step 4: Simplify right side
    2,195.38x = 3,637,506.97
  5. Step 5: Solve for x
    x = 3,637,506.97/2,195.38
  6. Step 6: Final answer
    x = 1,656.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.