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Finding the Fourth Proportional to 6,605.46, 9,908.73 and 2,221.74

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Solution

The fourth proportional to 6,605.46, 9,908.73 and 2,221.74 is: 3,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.46 : 9,908.73 = 2,221.74 : x
  2. Step 2: Convert to fraction form
    6,605.46/9,908.73 = 2,221.74/x
  3. Step 3: Cross multiply
    6,605.46x = 9,908.73 × 2,221.74
  4. Step 4: Simplify right side
    6,605.46x = 22,014,621.79
  5. Step 5: Solve for x
    x = 22,014,621.79/6,605.46
  6. Step 6: Final answer
    x = 3,332.79

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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.