Home / 2,207.09-3,045.33-1,311.14

Finding the Fourth Proportional to 2,207.09, 3,045.33 and 1,311.14

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Solution

The fourth proportional to 2,207.09, 3,045.33 and 1,311.14 is: 1,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,207.09 : 3,045.33 = 1,311.14 : x
  2. Step 2: Convert to fraction form
    2,207.09/3,045.33 = 1,311.14/x
  3. Step 3: Cross multiply
    2,207.09x = 3,045.33 × 1,311.14
  4. Step 4: Simplify right side
    2,207.09x = 3,992,861.59
  5. Step 5: Solve for x
    x = 3,992,861.59/2,207.09
  6. Step 6: Final answer
    x = 1,809.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.