Home / 6,630.20-9,944.78-3,855.10

Finding the Fourth Proportional to 6,630.20, 9,944.78 and 3,855.10

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Solution

The fourth proportional to 6,630.20, 9,944.78 and 3,855.10 is: 5,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,630.20 : 9,944.78 = 3,855.10 : x
  2. Step 2: Convert to fraction form
    6,630.20/9,944.78 = 3,855.10/x
  3. Step 3: Cross multiply
    6,630.20x = 9,944.78 × 3,855.10
  4. Step 4: Simplify right side
    6,630.20x = 38,338,121.38
  5. Step 5: Solve for x
    x = 38,338,121.38/6,630.20
  6. Step 6: Final answer
    x = 5,782.35

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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.