Home / 7,681.14-11,521.92-2,134.50

Finding the Fourth Proportional to 7,681.14, 11,521.92 and 2,134.50

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Solution

The fourth proportional to 7,681.14, 11,521.92 and 2,134.50 is: 3,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.14 : 11,521.92 = 2,134.50 : x
  2. Step 2: Convert to fraction form
    7,681.14/11,521.92 = 2,134.50/x
  3. Step 3: Cross multiply
    7,681.14x = 11,521.92 × 2,134.50
  4. Step 4: Simplify right side
    7,681.14x = 24,593,538.24
  5. Step 5: Solve for x
    x = 24,593,538.24/7,681.14
  6. Step 6: Final answer
    x = 3,201.81

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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.