Home / 3,883.40-5,356.04-2,747.08

Finding the Fourth Proportional to 3,883.40, 5,356.04 and 2,747.08

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Solution

The fourth proportional to 3,883.40, 5,356.04 and 2,747.08 is: 3,788.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.40 : 5,356.04 = 2,747.08 : x
  2. Step 2: Convert to fraction form
    3,883.40/5,356.04 = 2,747.08/x
  3. Step 3: Cross multiply
    3,883.40x = 5,356.04 × 2,747.08
  4. Step 4: Simplify right side
    3,883.40x = 14,713,470.36
  5. Step 5: Solve for x
    x = 14,713,470.36/3,883.40
  6. Step 6: Final answer
    x = 3,788.81

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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.