Home / 3,996.66-5,515.40-2,228.38

Finding the Fourth Proportional to 3,996.66, 5,515.40 and 2,228.38

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Solution

The fourth proportional to 3,996.66, 5,515.40 and 2,228.38 is: 3,075.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.66 : 5,515.40 = 2,228.38 : x
  2. Step 2: Convert to fraction form
    3,996.66/5,515.40 = 2,228.38/x
  3. Step 3: Cross multiply
    3,996.66x = 5,515.40 × 2,228.38
  4. Step 4: Simplify right side
    3,996.66x = 12,290,419.52
  5. Step 5: Solve for x
    x = 12,290,419.52/3,996.66
  6. Step 6: Final answer
    x = 3,075.17

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Half 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.