Home / 7,860.75-11,791.26-2,666.76

Finding the Fourth Proportional to 7,860.75, 11,791.26 and 2,666.76

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Solution

The fourth proportional to 7,860.75, 11,791.26 and 2,666.76 is: 4,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.75 : 11,791.26 = 2,666.76 : x
  2. Step 2: Convert to fraction form
    7,860.75/11,791.26 = 2,666.76/x
  3. Step 3: Cross multiply
    7,860.75x = 11,791.26 × 2,666.76
  4. Step 4: Simplify right side
    7,860.75x = 31,444,460.52
  5. Step 5: Solve for x
    x = 31,444,460.52/7,860.75
  6. Step 6: Final answer
    x = 4,000.19

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1.5x scale

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.