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Finding the Fourth Proportional to 6,642.68, 9,964.82 and 2,749.84

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Solution

The fourth proportional to 6,642.68, 9,964.82 and 2,749.84 is: 4,125.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642.68 : 9,964.82 = 2,749.84 : x
  2. Step 2: Convert to fraction form
    6,642.68/9,964.82 = 2,749.84/x
  3. Step 3: Cross multiply
    6,642.68x = 9,964.82 × 2,749.84
  4. Step 4: Simplify right side
    6,642.68x = 27,401,660.63
  5. Step 5: Solve for x
    x = 27,401,660.63/6,642.68
  6. Step 6: Final answer
    x = 4,125.09

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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.