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Finding the Fourth Proportional to 6,606.91, 9,117.81 and 3,622.86

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Solution

The fourth proportional to 6,606.91, 9,117.81 and 3,622.86 is: 4,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,606.91 : 9,117.81 = 3,622.86 : x
  2. Step 2: Convert to fraction form
    6,606.91/9,117.81 = 3,622.86/x
  3. Step 3: Cross multiply
    6,606.91x = 9,117.81 × 3,622.86
  4. Step 4: Simplify right side
    6,606.91x = 33,032,494.49
  5. Step 5: Solve for x
    x = 33,032,494.49/6,606.91
  6. Step 6: Final answer
    x = 4,999.69

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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.