Home / 6,689.06-9,231.22-3,856.86

Finding the Fourth Proportional to 6,689.06, 9,231.22 and 3,856.86

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Solution

The fourth proportional to 6,689.06, 9,231.22 and 3,856.86 is: 5,322.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.06 : 9,231.22 = 3,856.86 : x
  2. Step 2: Convert to fraction form
    6,689.06/9,231.22 = 3,856.86/x
  3. Step 3: Cross multiply
    6,689.06x = 9,231.22 × 3,856.86
  4. Step 4: Simplify right side
    6,689.06x = 35,603,523.17
  5. Step 5: Solve for x
    x = 35,603,523.17/6,689.06
  6. Step 6: Final answer
    x = 5,322.65

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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.