Home / 5,212.76-7,823.25-1,926.79

Finding the Fourth Proportional to 5,212.76, 7,823.25 and 1,926.79

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Solution

The fourth proportional to 5,212.76, 7,823.25 and 1,926.79 is: 2,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.76 : 7,823.25 = 1,926.79 : x
  2. Step 2: Convert to fraction form
    5,212.76/7,823.25 = 1,926.79/x
  3. Step 3: Cross multiply
    5,212.76x = 7,823.25 × 1,926.79
  4. Step 4: Simplify right side
    5,212.76x = 15,073,759.87
  5. Step 5: Solve for x
    x = 15,073,759.87/5,212.76
  6. Step 6: Final answer
    x = 2,891.70

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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.