Home / 6,856.68-9,462.39-3,872.25

Finding the Fourth Proportional to 6,856.68, 9,462.39 and 3,872.25

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Solution

The fourth proportional to 6,856.68, 9,462.39 and 3,872.25 is: 5,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,856.68 : 9,462.39 = 3,872.25 : x
  2. Step 2: Convert to fraction form
    6,856.68/9,462.39 = 3,872.25/x
  3. Step 3: Cross multiply
    6,856.68x = 9,462.39 × 3,872.25
  4. Step 4: Simplify right side
    6,856.68x = 36,640,739.68
  5. Step 5: Solve for x
    x = 36,640,739.68/6,856.68
  6. Step 6: Final answer
    x = 5,343.80

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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.