Home / 3,799.69-5,243.54-2,120.99

Finding the Fourth Proportional to 3,799.69, 5,243.54 and 2,120.99

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Solution

The fourth proportional to 3,799.69, 5,243.54 and 2,120.99 is: 2,926.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,799.69 : 5,243.54 = 2,120.99 : x
  2. Step 2: Convert to fraction form
    3,799.69/5,243.54 = 2,120.99/x
  3. Step 3: Cross multiply
    3,799.69x = 5,243.54 × 2,120.99
  4. Step 4: Simplify right side
    3,799.69x = 11,121,459.08
  5. Step 5: Solve for x
    x = 11,121,459.08/3,799.69
  6. Step 6: Final answer
    x = 2,926.94

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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.