Home / 6,516.45-8,990.19-3,997.35

Finding the Fourth Proportional to 6,516.45, 8,990.19 and 3,997.35

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Solution

The fourth proportional to 6,516.45, 8,990.19 and 3,997.35 is: 5,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.45 : 8,990.19 = 3,997.35 : x
  2. Step 2: Convert to fraction form
    6,516.45/8,990.19 = 3,997.35/x
  3. Step 3: Cross multiply
    6,516.45x = 8,990.19 × 3,997.35
  4. Step 4: Simplify right side
    6,516.45x = 35,936,936.00
  5. Step 5: Solve for x
    x = 35,936,936.00/6,516.45
  6. Step 6: Final answer
    x = 5,514.80

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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.