Home / 3,081.61-4,250.73-2,087.11

Finding the Fourth Proportional to 3,081.61, 4,250.73 and 2,087.11

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Solution

The fourth proportional to 3,081.61, 4,250.73 and 2,087.11 is: 2,878.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.61 : 4,250.73 = 2,087.11 : x
  2. Step 2: Convert to fraction form
    3,081.61/4,250.73 = 2,087.11/x
  3. Step 3: Cross multiply
    3,081.61x = 4,250.73 × 2,087.11
  4. Step 4: Simplify right side
    3,081.61x = 8,871,741.09
  5. Step 5: Solve for x
    x = 8,871,741.09/3,081.61
  6. Step 6: Final answer
    x = 2,878.93

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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.