Home / 5,188.92-7,786.08-3,964.20

Finding the Fourth Proportional to 5,188.92, 7,786.08 and 3,964.20

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Solution

The fourth proportional to 5,188.92, 7,786.08 and 3,964.20 is: 5,948.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.92 : 7,786.08 = 3,964.20 : x
  2. Step 2: Convert to fraction form
    5,188.92/7,786.08 = 3,964.20/x
  3. Step 3: Cross multiply
    5,188.92x = 7,786.08 × 3,964.20
  4. Step 4: Simplify right side
    5,188.92x = 30,865,578.34
  5. Step 5: Solve for x
    x = 30,865,578.34/5,188.92
  6. Step 6: Final answer
    x = 5,948.36

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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.