Home / 6,516.28-8,990.37-3,997.18

Finding the Fourth Proportional to 6,516.28, 8,990.37 and 3,997.18

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Solution

The fourth proportional to 6,516.28, 8,990.37 and 3,997.18 is: 5,514.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,516.28 : 8,990.37 = 3,997.18 : x
  2. Step 2: Convert to fraction form
    6,516.28/8,990.37 = 3,997.18/x
  3. Step 3: Cross multiply
    6,516.28x = 8,990.37 × 3,997.18
  4. Step 4: Simplify right side
    6,516.28x = 35,936,127.16
  5. Step 5: Solve for x
    x = 35,936,127.16/6,516.28
  6. Step 6: Final answer
    x = 5,514.82

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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.