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Finding the Fourth Proportional to 6,616.42, 9,924.12 and 2,918.67

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Solution

The fourth proportional to 6,616.42, 9,924.12 and 2,918.67 is: 4,377.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616.42 : 9,924.12 = 2,918.67 : x
  2. Step 2: Convert to fraction form
    6,616.42/9,924.12 = 2,918.67/x
  3. Step 3: Cross multiply
    6,616.42x = 9,924.12 × 2,918.67
  4. Step 4: Simplify right side
    6,616.42x = 28,965,194.10
  5. Step 5: Solve for x
    x = 28,965,194.10/6,616.42
  6. Step 6: Final answer
    x = 4,377.78

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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.