Home / 7,836.28-11,756.18-2,642

Finding the Fourth Proportional to 7,836.28, 11,756.18 and 2,642

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Solution

The fourth proportional to 7,836.28, 11,756.18 and 2,642 is: 3,963.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.28 : 11,756.18 = 2,642 : x
  2. Step 2: Convert to fraction form
    7,836.28/11,756.18 = 2,642/x
  3. Step 3: Cross multiply
    7,836.28x = 11,756.18 × 2,642
  4. Step 4: Simplify right side
    7,836.28x = 31,059,827.56
  5. Step 5: Solve for x
    x = 31,059,827.56/7,836.28
  6. Step 6: Final answer
    x = 3,963.59

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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.