Home / 6,115.36-9,176.10-2,221.60

Finding the Fourth Proportional to 6,115.36, 9,176.10 and 2,221.60

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Solution

The fourth proportional to 6,115.36, 9,176.10 and 2,221.60 is: 3,333.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,115.36 : 9,176.10 = 2,221.60 : x
  2. Step 2: Convert to fraction form
    6,115.36/9,176.10 = 2,221.60/x
  3. Step 3: Cross multiply
    6,115.36x = 9,176.10 × 2,221.60
  4. Step 4: Simplify right side
    6,115.36x = 20,385,623.76
  5. Step 5: Solve for x
    x = 20,385,623.76/6,115.36
  6. Step 6: Final answer
    x = 3,333.51

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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.