Home / 7,305.09-10,956.11-2,109.75

Finding the Fourth Proportional to 7,305.09, 10,956.11 and 2,109.75

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Solution

The fourth proportional to 7,305.09, 10,956.11 and 2,109.75 is: 3,164.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.09 : 10,956.11 = 2,109.75 : x
  2. Step 2: Convert to fraction form
    7,305.09/10,956.11 = 2,109.75/x
  3. Step 3: Cross multiply
    7,305.09x = 10,956.11 × 2,109.75
  4. Step 4: Simplify right side
    7,305.09x = 23,114,642.52
  5. Step 5: Solve for x
    x = 23,114,642.52/7,305.09
  6. Step 6: Final answer
    x = 3,164.18

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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.