Home / 7,787.28-10,745.99-4,249.78

Finding the Fourth Proportional to 7,787.28, 10,745.99 and 4,249.78

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Solution

The fourth proportional to 7,787.28, 10,745.99 and 4,249.78 is: 5,864.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,787.28 : 10,745.99 = 4,249.78 : x
  2. Step 2: Convert to fraction form
    7,787.28/10,745.99 = 4,249.78/x
  3. Step 3: Cross multiply
    7,787.28x = 10,745.99 × 4,249.78
  4. Step 4: Simplify right side
    7,787.28x = 45,668,093.38
  5. Step 5: Solve for x
    x = 45,668,093.38/7,787.28
  6. Step 6: Final answer
    x = 5,864.45

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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.