Home / 6,640.05-9,162.99-3,914.55

Finding the Fourth Proportional to 6,640.05, 9,162.99 and 3,914.55

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Solution

The fourth proportional to 6,640.05, 9,162.99 and 3,914.55 is: 5,401.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.05 : 9,162.99 = 3,914.55 : x
  2. Step 2: Convert to fraction form
    6,640.05/9,162.99 = 3,914.55/x
  3. Step 3: Cross multiply
    6,640.05x = 9,162.99 × 3,914.55
  4. Step 4: Simplify right side
    6,640.05x = 35,868,982.50
  5. Step 5: Solve for x
    x = 35,868,982.50/6,640.05
  6. Step 6: Final answer
    x = 5,401.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.