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Finding the Fourth Proportional to 3,866.79, 5,796.09 and 2,222.49

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Solution

The fourth proportional to 3,866.79, 5,796.09 and 2,222.49 is: 3,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.79 : 5,796.09 = 2,222.49 : x
  2. Step 2: Convert to fraction form
    3,866.79/5,796.09 = 2,222.49/x
  3. Step 3: Cross multiply
    3,866.79x = 5,796.09 × 2,222.49
  4. Step 4: Simplify right side
    3,866.79x = 12,881,752.06
  5. Step 5: Solve for x
    x = 12,881,752.06/3,866.79
  6. Step 6: Final answer
    x = 3,331.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.