Home / 6,513.66-8,989.02-3,997.16

Finding the Fourth Proportional to 6,513.66, 8,989.02 and 3,997.16

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Solution

The fourth proportional to 6,513.66, 8,989.02 and 3,997.16 is: 5,516.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.66 : 8,989.02 = 3,997.16 : x
  2. Step 2: Convert to fraction form
    6,513.66/8,989.02 = 3,997.16/x
  3. Step 3: Cross multiply
    6,513.66x = 8,989.02 × 3,997.16
  4. Step 4: Simplify right side
    6,513.66x = 35,930,519.96
  5. Step 5: Solve for x
    x = 35,930,519.96/6,513.66
  6. Step 6: Final answer
    x = 5,516.18

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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.