Home / 7,725.12-11,587.56-3,108

Finding the Fourth Proportional to 7,725.12, 11,587.56 and 3,108

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Solution

The fourth proportional to 7,725.12, 11,587.56 and 3,108 is: 4,661.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.12 : 11,587.56 = 3,108 : x
  2. Step 2: Convert to fraction form
    7,725.12/11,587.56 = 3,108/x
  3. Step 3: Cross multiply
    7,725.12x = 11,587.56 × 3,108
  4. Step 4: Simplify right side
    7,725.12x = 36,014,136.48
  5. Step 5: Solve for x
    x = 36,014,136.48/7,725.12
  6. Step 6: Final answer
    x = 4,661.95

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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.