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Finding the Fourth Proportional to 6,775.40, 10,163.10 and 3,487.40

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Solution

The fourth proportional to 6,775.40, 10,163.10 and 3,487.40 is: 5,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,775.40 : 10,163.10 = 3,487.40 : x
  2. Step 2: Convert to fraction form
    6,775.40/10,163.10 = 3,487.40/x
  3. Step 3: Cross multiply
    6,775.40x = 10,163.10 × 3,487.40
  4. Step 4: Simplify right side
    6,775.40x = 35,442,794.94
  5. Step 5: Solve for x
    x = 35,442,794.94/6,775.40
  6. Step 6: Final answer
    x = 5,231.10

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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.