Home / 6,239.10-8,609.91-3,406.38

Finding the Fourth Proportional to 6,239.10, 8,609.91 and 3,406.38

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Solution

The fourth proportional to 6,239.10, 8,609.91 and 3,406.38 is: 4,700.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.10 : 8,609.91 = 3,406.38 : x
  2. Step 2: Convert to fraction form
    6,239.10/8,609.91 = 3,406.38/x
  3. Step 3: Cross multiply
    6,239.10x = 8,609.91 × 3,406.38
  4. Step 4: Simplify right side
    6,239.10x = 29,328,625.23
  5. Step 5: Solve for x
    x = 29,328,625.23/6,239.10
  6. Step 6: Final answer
    x = 4,700.78

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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.