Home / 3,822.05-5,274.42-2,228.76

Finding the Fourth Proportional to 3,822.05, 5,274.42 and 2,228.76

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Solution

The fourth proportional to 3,822.05, 5,274.42 and 2,228.76 is: 3,075.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,822.05 : 5,274.42 = 2,228.76 : x
  2. Step 2: Convert to fraction form
    3,822.05/5,274.42 = 2,228.76/x
  3. Step 3: Cross multiply
    3,822.05x = 5,274.42 × 2,228.76
  4. Step 4: Simplify right side
    3,822.05x = 11,755,416.32
  5. Step 5: Solve for x
    x = 11,755,416.32/3,822.05
  6. Step 6: Final answer
    x = 3,075.68

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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.