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Finding the Fourth Proportional to 6,612.28, 9,919.11 and 2,230.08

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Solution

The fourth proportional to 6,612.28, 9,919.11 and 2,230.08 is: 3,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.28 : 9,919.11 = 2,230.08 : x
  2. Step 2: Convert to fraction form
    6,612.28/9,919.11 = 2,230.08/x
  3. Step 3: Cross multiply
    6,612.28x = 9,919.11 × 2,230.08
  4. Step 4: Simplify right side
    6,612.28x = 22,120,423.25
  5. Step 5: Solve for x
    x = 22,120,423.25/6,612.28
  6. Step 6: Final answer
    x = 3,345.35

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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.