Home / 6,238.92-8,611.50-3,689.04

Finding the Fourth Proportional to 6,238.92, 8,611.50 and 3,689.04

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Solution

The fourth proportional to 6,238.92, 8,611.50 and 3,689.04 is: 5,091.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,238.92 : 8,611.50 = 3,689.04 : x
  2. Step 2: Convert to fraction form
    6,238.92/8,611.50 = 3,689.04/x
  3. Step 3: Cross multiply
    6,238.92x = 8,611.50 × 3,689.04
  4. Step 4: Simplify right side
    6,238.92x = 31,768,167.96
  5. Step 5: Solve for x
    x = 31,768,167.96/6,238.92
  6. Step 6: Final answer
    x = 5,091.93

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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.