Home / 2,254.38-3,111.42-2,195.16

Finding the Fourth Proportional to 2,254.38, 3,111.42 and 2,195.16

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Solution

The fourth proportional to 2,254.38, 3,111.42 and 2,195.16 is: 3,029.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,254.38 : 3,111.42 = 2,195.16 : x
  2. Step 2: Convert to fraction form
    2,254.38/3,111.42 = 2,195.16/x
  3. Step 3: Cross multiply
    2,254.38x = 3,111.42 × 2,195.16
  4. Step 4: Simplify right side
    2,254.38x = 6,830,064.73
  5. Step 5: Solve for x
    x = 6,830,064.73/2,254.38
  6. Step 6: Final answer
    x = 3,029.69

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Half scale
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Double scale
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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.