Home / 5,217.91-7,824.81-1,928.75

Finding the Fourth Proportional to 5,217.91, 7,824.81 and 1,928.75

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Solution

The fourth proportional to 5,217.91, 7,824.81 and 1,928.75 is: 2,892.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.91 : 7,824.81 = 1,928.75 : x
  2. Step 2: Convert to fraction form
    5,217.91/7,824.81 = 1,928.75/x
  3. Step 3: Cross multiply
    5,217.91x = 7,824.81 × 1,928.75
  4. Step 4: Simplify right side
    5,217.91x = 15,092,102.29
  5. Step 5: Solve for x
    x = 15,092,102.29/5,217.91
  6. Step 6: Final answer
    x = 2,892.37

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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.