Home / 7,896.19-11,839.93-3,215

Finding the Fourth Proportional to 7,896.19, 11,839.93 and 3,215

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Solution

The fourth proportional to 7,896.19, 11,839.93 and 3,215 is: 4,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.19 : 11,839.93 = 3,215 : x
  2. Step 2: Convert to fraction form
    7,896.19/11,839.93 = 3,215/x
  3. Step 3: Cross multiply
    7,896.19x = 11,839.93 × 3,215
  4. Step 4: Simplify right side
    7,896.19x = 38,065,374.95
  5. Step 5: Solve for x
    x = 38,065,374.95/7,896.19
  6. Step 6: Final answer
    x = 4,820.73

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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.