Home / 7,850.75-11,777.86-2,587.38

Finding the Fourth Proportional to 7,850.75, 11,777.86 and 2,587.38

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Solution

The fourth proportional to 7,850.75, 11,777.86 and 2,587.38 is: 3,881.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,850.75 : 11,777.86 = 2,587.38 : x
  2. Step 2: Convert to fraction form
    7,850.75/11,777.86 = 2,587.38/x
  3. Step 3: Cross multiply
    7,850.75x = 11,777.86 × 2,587.38
  4. Step 4: Simplify right side
    7,850.75x = 30,473,799.41
  5. Step 5: Solve for x
    x = 30,473,799.41/7,850.75
  6. Step 6: Final answer
    x = 3,881.64

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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.