Home / 6,724.64-9,279.12-3,739.88

Finding the Fourth Proportional to 6,724.64, 9,279.12 and 3,739.88

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Solution

The fourth proportional to 6,724.64, 9,279.12 and 3,739.88 is: 5,160.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,724.64 : 9,279.12 = 3,739.88 : x
  2. Step 2: Convert to fraction form
    6,724.64/9,279.12 = 3,739.88/x
  3. Step 3: Cross multiply
    6,724.64x = 9,279.12 × 3,739.88
  4. Step 4: Simplify right side
    6,724.64x = 34,702,795.31
  5. Step 5: Solve for x
    x = 34,702,795.31/6,724.64
  6. Step 6: Final answer
    x = 5,160.54

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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.