Home / 5,643.92-7,788.66-3,286.28

Finding the Fourth Proportional to 5,643.92, 7,788.66 and 3,286.28

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Solution

The fourth proportional to 5,643.92, 7,788.66 and 3,286.28 is: 4,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,643.92 : 7,788.66 = 3,286.28 : x
  2. Step 2: Convert to fraction form
    5,643.92/7,788.66 = 3,286.28/x
  3. Step 3: Cross multiply
    5,643.92x = 7,788.66 × 3,286.28
  4. Step 4: Simplify right side
    5,643.92x = 25,595,717.58
  5. Step 5: Solve for x
    x = 25,595,717.58/5,643.92
  6. Step 6: Final answer
    x = 4,535.10

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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.