Home / 7,772.28-11,658.26-1,928.82

Finding the Fourth Proportional to 7,772.28, 11,658.26 and 1,928.82

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Solution

The fourth proportional to 7,772.28, 11,658.26 and 1,928.82 is: 2,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.28 : 11,658.26 = 1,928.82 : x
  2. Step 2: Convert to fraction form
    7,772.28/11,658.26 = 1,928.82/x
  3. Step 3: Cross multiply
    7,772.28x = 11,658.26 × 1,928.82
  4. Step 4: Simplify right side
    7,772.28x = 22,486,685.05
  5. Step 5: Solve for x
    x = 22,486,685.05/7,772.28
  6. Step 6: Final answer
    x = 2,893.19

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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.