Home / 6,638.78-9,961.65-2,943.56

Finding the Fourth Proportional to 6,638.78, 9,961.65 and 2,943.56

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Solution

The fourth proportional to 6,638.78, 9,961.65 and 2,943.56 is: 4,416.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.78 : 9,961.65 = 2,943.56 : x
  2. Step 2: Convert to fraction form
    6,638.78/9,961.65 = 2,943.56/x
  3. Step 3: Cross multiply
    6,638.78x = 9,961.65 × 2,943.56
  4. Step 4: Simplify right side
    6,638.78x = 29,322,739.38
  5. Step 5: Solve for x
    x = 29,322,739.38/6,638.78
  6. Step 6: Final answer
    x = 4,416.89

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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.