Home / 3,881.12-5,356.42-2,203.05

Finding the Fourth Proportional to 3,881.12, 5,356.42 and 2,203.05

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Solution

The fourth proportional to 3,881.12, 5,356.42 and 2,203.05 is: 3,040.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.12 : 5,356.42 = 2,203.05 : x
  2. Step 2: Convert to fraction form
    3,881.12/5,356.42 = 2,203.05/x
  3. Step 3: Cross multiply
    3,881.12x = 5,356.42 × 2,203.05
  4. Step 4: Simplify right side
    3,881.12x = 11,800,483.92
  5. Step 5: Solve for x
    x = 11,800,483.92/3,881.12
  6. Step 6: Final answer
    x = 3,040.48

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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.