Home / 6,890.72-10,336.07-2,211.21

Finding the Fourth Proportional to 6,890.72, 10,336.07 and 2,211.21

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Solution

The fourth proportional to 6,890.72, 10,336.07 and 2,211.21 is: 3,316.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.72 : 10,336.07 = 2,211.21 : x
  2. Step 2: Convert to fraction form
    6,890.72/10,336.07 = 2,211.21/x
  3. Step 3: Cross multiply
    6,890.72x = 10,336.07 × 2,211.21
  4. Step 4: Simplify right side
    6,890.72x = 22,855,226.87
  5. Step 5: Solve for x
    x = 22,855,226.87/6,890.72
  6. Step 6: Final answer
    x = 3,316.82

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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.