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Finding the Fourth Proportional to 6,900.66, 10,355.22 and 2,742.66

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Solution

The fourth proportional to 6,900.66, 10,355.22 and 2,742.66 is: 4,115.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900.66 : 10,355.22 = 2,742.66 : x
  2. Step 2: Convert to fraction form
    6,900.66/10,355.22 = 2,742.66/x
  3. Step 3: Cross multiply
    6,900.66x = 10,355.22 × 2,742.66
  4. Step 4: Simplify right side
    6,900.66x = 28,400,847.69
  5. Step 5: Solve for x
    x = 28,400,847.69/6,900.66
  6. Step 6: Final answer
    x = 4,115.67

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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.