Home / 6,219.91-9,329.87-5,121.99

Finding the Fourth Proportional to 6,219.91, 9,329.87 and 5,121.99

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Solution

The fourth proportional to 6,219.91, 9,329.87 and 5,121.99 is: 7,682.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.91 : 9,329.87 = 5,121.99 : x
  2. Step 2: Convert to fraction form
    6,219.91/9,329.87 = 5,121.99/x
  3. Step 3: Cross multiply
    6,219.91x = 9,329.87 × 5,121.99
  4. Step 4: Simplify right side
    6,219.91x = 47,787,500.84
  5. Step 5: Solve for x
    x = 47,787,500.84/6,219.91
  6. Step 6: Final answer
    x = 7,682.99

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Similar ratio
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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.