Home / 3,996.84-5,515.74-2,228.43

Finding the Fourth Proportional to 3,996.84, 5,515.74 and 2,228.43

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Solution

The fourth proportional to 3,996.84, 5,515.74 and 2,228.43 is: 3,075.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,996.84 : 5,515.74 = 2,228.43 : x
  2. Step 2: Convert to fraction form
    3,996.84/5,515.74 = 2,228.43/x
  3. Step 3: Cross multiply
    3,996.84x = 5,515.74 × 2,228.43
  4. Step 4: Simplify right side
    3,996.84x = 12,291,440.49
  5. Step 5: Solve for x
    x = 12,291,440.49/3,996.84
  6. Step 6: Final answer
    x = 3,075.29

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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.