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Finding the Fourth Proportional to 6,622.92, 9,936.54 and 3,160.20

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Solution

The fourth proportional to 6,622.92, 9,936.54 and 3,160.20 is: 4,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,622.92 : 9,936.54 = 3,160.20 : x
  2. Step 2: Convert to fraction form
    6,622.92/9,936.54 = 3,160.20/x
  3. Step 3: Cross multiply
    6,622.92x = 9,936.54 × 3,160.20
  4. Step 4: Simplify right side
    6,622.92x = 31,401,453.71
  5. Step 5: Solve for x
    x = 31,401,453.71/6,622.92
  6. Step 6: Final answer
    x = 4,741.33

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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.