Home / 6,416.20-9,618.90-3,338.20

Finding the Fourth Proportional to 6,416.20, 9,618.90 and 3,338.20

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Solution

The fourth proportional to 6,416.20, 9,618.90 and 3,338.20 is: 5,004.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.20 : 9,618.90 = 3,338.20 : x
  2. Step 2: Convert to fraction form
    6,416.20/9,618.90 = 3,338.20/x
  3. Step 3: Cross multiply
    6,416.20x = 9,618.90 × 3,338.20
  4. Step 4: Simplify right side
    6,416.20x = 32,109,811.98
  5. Step 5: Solve for x
    x = 32,109,811.98/6,416.20
  6. Step 6: Final answer
    x = 5,004.49

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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.