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Finding the Fourth Proportional to 6,639.56, 9,162.06 and 3,845.24

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Solution

The fourth proportional to 6,639.56, 9,162.06 and 3,845.24 is: 5,306.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.56 : 9,162.06 = 3,845.24 : x
  2. Step 2: Convert to fraction form
    6,639.56/9,162.06 = 3,845.24/x
  3. Step 3: Cross multiply
    6,639.56x = 9,162.06 × 3,845.24
  4. Step 4: Simplify right side
    6,639.56x = 35,230,319.59
  5. Step 5: Solve for x
    x = 35,230,319.59/6,639.56
  6. Step 6: Final answer
    x = 5,306.12

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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.