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Finding the Fourth Proportional to 7,794.78, 11,692.18 and 2,600.66

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Solution

The fourth proportional to 7,794.78, 11,692.18 and 2,600.66 is: 3,900.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,794.78 : 11,692.18 = 2,600.66 : x
  2. Step 2: Convert to fraction form
    7,794.78/11,692.18 = 2,600.66/x
  3. Step 3: Cross multiply
    7,794.78x = 11,692.18 × 2,600.66
  4. Step 4: Simplify right side
    7,794.78x = 30,407,384.84
  5. Step 5: Solve for x
    x = 30,407,384.84/7,794.78
  6. Step 6: Final answer
    x = 3,900.99

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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.