Home / 3,882.40-5,356.50-2,203.72

Finding the Fourth Proportional to 3,882.40, 5,356.50 and 2,203.72

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Solution

The fourth proportional to 3,882.40, 5,356.50 and 2,203.72 is: 3,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.40 : 5,356.50 = 2,203.72 : x
  2. Step 2: Convert to fraction form
    3,882.40/5,356.50 = 2,203.72/x
  3. Step 3: Cross multiply
    3,882.40x = 5,356.50 × 2,203.72
  4. Step 4: Simplify right side
    3,882.40x = 11,804,226.18
  5. Step 5: Solve for x
    x = 11,804,226.18/3,882.40
  6. Step 6: Final answer
    x = 3,040.45

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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.