Home / 2,175.36-3,001.68-1,243.68

Finding the Fourth Proportional to 2,175.36, 3,001.68 and 1,243.68

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Solution

The fourth proportional to 2,175.36, 3,001.68 and 1,243.68 is: 1,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175.36 : 3,001.68 = 1,243.68 : x
  2. Step 2: Convert to fraction form
    2,175.36/3,001.68 = 1,243.68/x
  3. Step 3: Cross multiply
    2,175.36x = 3,001.68 × 1,243.68
  4. Step 4: Simplify right side
    2,175.36x = 3,733,129.38
  5. Step 5: Solve for x
    x = 3,733,129.38/2,175.36
  6. Step 6: Final answer
    x = 1,716.10

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Half scale
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Double scale
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Similar ratio
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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.