Home / 6,436.09-9,657.69-3,149.20

Finding the Fourth Proportional to 6,436.09, 9,657.69 and 3,149.20

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Solution

The fourth proportional to 6,436.09, 9,657.69 and 3,149.20 is: 4,725.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436.09 : 9,657.69 = 3,149.20 : x
  2. Step 2: Convert to fraction form
    6,436.09/9,657.69 = 3,149.20/x
  3. Step 3: Cross multiply
    6,436.09x = 9,657.69 × 3,149.20
  4. Step 4: Simplify right side
    6,436.09x = 30,413,997.35
  5. Step 5: Solve for x
    x = 30,413,997.35/6,436.09
  6. Step 6: Final answer
    x = 4,725.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.