Home / 6,723.74-9,278.64-3,739.46

Finding the Fourth Proportional to 6,723.74, 9,278.64 and 3,739.46

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Solution

The fourth proportional to 6,723.74, 9,278.64 and 3,739.46 is: 5,160.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.74 : 9,278.64 = 3,739.46 : x
  2. Step 2: Convert to fraction form
    6,723.74/9,278.64 = 3,739.46/x
  3. Step 3: Cross multiply
    6,723.74x = 9,278.64 × 3,739.46
  4. Step 4: Simplify right side
    6,723.74x = 34,697,103.13
  5. Step 5: Solve for x
    x = 34,697,103.13/6,723.74
  6. Step 6: Final answer
    x = 5,160.39

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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.