Home / 6,723.40-9,278.10-3,739.08

Finding the Fourth Proportional to 6,723.40, 9,278.10 and 3,739.08

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Solution

The fourth proportional to 6,723.40, 9,278.10 and 3,739.08 is: 5,159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.40 : 9,278.10 = 3,739.08 : x
  2. Step 2: Convert to fraction form
    6,723.40/9,278.10 = 3,739.08/x
  3. Step 3: Cross multiply
    6,723.40x = 9,278.10 × 3,739.08
  4. Step 4: Simplify right side
    6,723.40x = 34,691,558.15
  5. Step 5: Solve for x
    x = 34,691,558.15/6,723.40
  6. Step 6: Final answer
    x = 5,159.82

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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.