Home / 3,877.84-5,351.56-2,222.16

Finding the Fourth Proportional to 3,877.84, 5,351.56 and 2,222.16

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Solution

The fourth proportional to 3,877.84, 5,351.56 and 2,222.16 is: 3,066.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.84 : 5,351.56 = 2,222.16 : x
  2. Step 2: Convert to fraction form
    3,877.84/5,351.56 = 2,222.16/x
  3. Step 3: Cross multiply
    3,877.84x = 5,351.56 × 2,222.16
  4. Step 4: Simplify right side
    3,877.84x = 11,892,022.57
  5. Step 5: Solve for x
    x = 11,892,022.57/3,877.84
  6. Step 6: Final answer
    x = 3,066.66

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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.