Home / 4,221.49-6,331.86-1,881.61

Finding the Fourth Proportional to 4,221.49, 6,331.86 and 1,881.61

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Solution

The fourth proportional to 4,221.49, 6,331.86 and 1,881.61 is: 2,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.49 : 6,331.86 = 1,881.61 : x
  2. Step 2: Convert to fraction form
    4,221.49/6,331.86 = 1,881.61/x
  3. Step 3: Cross multiply
    4,221.49x = 6,331.86 × 1,881.61
  4. Step 4: Simplify right side
    4,221.49x = 11,914,091.09
  5. Step 5: Solve for x
    x = 11,914,091.09/4,221.49
  6. Step 6: Final answer
    x = 2,822.25

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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.