Home / 7,107.60-10,660.55-2,180.64

Finding the Fourth Proportional to 7,107.60, 10,660.55 and 2,180.64

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Solution

The fourth proportional to 7,107.60, 10,660.55 and 2,180.64 is: 3,270.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.60 : 10,660.55 = 2,180.64 : x
  2. Step 2: Convert to fraction form
    7,107.60/10,660.55 = 2,180.64/x
  3. Step 3: Cross multiply
    7,107.60x = 10,660.55 × 2,180.64
  4. Step 4: Simplify right side
    7,107.60x = 23,246,821.75
  5. Step 5: Solve for x
    x = 23,246,821.75/7,107.60
  6. Step 6: Final answer
    x = 3,270.70

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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.