Home / 3,996.71-5,515.47-2,228.34

Finding the Fourth Proportional to 3,996.71, 5,515.47 and 2,228.34

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Solution

The fourth proportional to 3,996.71, 5,515.47 and 2,228.34 is: 3,075.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.71 : 5,515.47 = 2,228.34 : x
  2. Step 2: Convert to fraction form
    3,996.71/5,515.47 = 2,228.34/x
  3. Step 3: Cross multiply
    3,996.71x = 5,515.47 × 2,228.34
  4. Step 4: Simplify right side
    3,996.71x = 12,290,342.42
  5. Step 5: Solve for x
    x = 12,290,342.42/3,996.71
  6. Step 6: Final answer
    x = 3,075.12

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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.