Home / 3,881.46-5,357.97-2,309.25

Finding the Fourth Proportional to 3,881.46, 5,357.97 and 2,309.25

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Solution

The fourth proportional to 3,881.46, 5,357.97 and 2,309.25 is: 3,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.46 : 5,357.97 = 2,309.25 : x
  2. Step 2: Convert to fraction form
    3,881.46/5,357.97 = 2,309.25/x
  3. Step 3: Cross multiply
    3,881.46x = 5,357.97 × 2,309.25
  4. Step 4: Simplify right side
    3,881.46x = 12,372,892.22
  5. Step 5: Solve for x
    x = 12,372,892.22/3,881.46
  6. Step 6: Final answer
    x = 3,187.69

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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.