Home / 5,768.40-8,653.68-1,872.84

Finding the Fourth Proportional to 5,768.40, 8,653.68 and 1,872.84

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Solution

The fourth proportional to 5,768.40, 8,653.68 and 1,872.84 is: 2,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,768.40 : 8,653.68 = 1,872.84 : x
  2. Step 2: Convert to fraction form
    5,768.40/8,653.68 = 1,872.84/x
  3. Step 3: Cross multiply
    5,768.40x = 8,653.68 × 1,872.84
  4. Step 4: Simplify right side
    5,768.40x = 16,206,958.05
  5. Step 5: Solve for x
    x = 16,206,958.05/5,768.40
  6. Step 6: Final answer
    x = 2,809.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.