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Finding the Fourth Proportional to 7,266.78, 10,893.90 and 3,261.12

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Solution

The fourth proportional to 7,266.78, 10,893.90 and 3,261.12 is: 4,888.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,266.78 : 10,893.90 = 3,261.12 : x
  2. Step 2: Convert to fraction form
    7,266.78/10,893.90 = 3,261.12/x
  3. Step 3: Cross multiply
    7,266.78x = 10,893.90 × 3,261.12
  4. Step 4: Simplify right side
    7,266.78x = 35,526,315.17
  5. Step 5: Solve for x
    x = 35,526,315.17/7,266.78
  6. Step 6: Final answer
    x = 4,888.87

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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.