Home / 6,723.78-9,278.11-3,739.14

Finding the Fourth Proportional to 6,723.78, 9,278.11 and 3,739.14

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Solution

The fourth proportional to 6,723.78, 9,278.11 and 3,739.14 is: 5,159.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.78 : 9,278.11 = 3,739.14 : x
  2. Step 2: Convert to fraction form
    6,723.78/9,278.11 = 3,739.14/x
  3. Step 3: Cross multiply
    6,723.78x = 9,278.11 × 3,739.14
  4. Step 4: Simplify right side
    6,723.78x = 34,692,122.11
  5. Step 5: Solve for x
    x = 34,692,122.11/6,723.78
  6. Step 6: Final answer
    x = 5,159.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.