Home / 7,895.81-11,839.75-2,628.96

Finding the Fourth Proportional to 7,895.81, 11,839.75 and 2,628.96

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Solution

The fourth proportional to 7,895.81, 11,839.75 and 2,628.96 is: 3,942.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.81 : 11,839.75 = 2,628.96 : x
  2. Step 2: Convert to fraction form
    7,895.81/11,839.75 = 2,628.96/x
  3. Step 3: Cross multiply
    7,895.81x = 11,839.75 × 2,628.96
  4. Step 4: Simplify right side
    7,895.81x = 31,126,259.58
  5. Step 5: Solve for x
    x = 31,126,259.58/7,895.81
  6. Step 6: Final answer
    x = 3,942.12

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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.