Home / 6,623.64-9,143.46-3,970.62

Finding the Fourth Proportional to 6,623.64, 9,143.46 and 3,970.62

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Solution

The fourth proportional to 6,623.64, 9,143.46 and 3,970.62 is: 5,481.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,623.64 : 9,143.46 = 3,970.62 : x
  2. Step 2: Convert to fraction form
    6,623.64/9,143.46 = 3,970.62/x
  3. Step 3: Cross multiply
    6,623.64x = 9,143.46 × 3,970.62
  4. Step 4: Simplify right side
    6,623.64x = 36,305,205.15
  5. Step 5: Solve for x
    x = 36,305,205.15/6,623.64
  6. Step 6: Final answer
    x = 5,481.16

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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.