Home / 2,211.08-3,316.23-824.09

Finding the Fourth Proportional to 2,211.08, 3,316.23 and 824.09

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Solution

The fourth proportional to 2,211.08, 3,316.23 and 824.09 is: 1,235.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.08 : 3,316.23 = 824.09 : x
  2. Step 2: Convert to fraction form
    2,211.08/3,316.23 = 824.09/x
  3. Step 3: Cross multiply
    2,211.08x = 3,316.23 × 824.09
  4. Step 4: Simplify right side
    2,211.08x = 2,732,871.98
  5. Step 5: Solve for x
    x = 2,732,871.98/2,211.08
  6. Step 6: Final answer
    x = 1,235.99

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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.