Home / 7,108.32-10,659.78-3,406.62

Finding the Fourth Proportional to 7,108.32, 10,659.78 and 3,406.62

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Solution

The fourth proportional to 7,108.32, 10,659.78 and 3,406.62 is: 5,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.32 : 10,659.78 = 3,406.62 : x
  2. Step 2: Convert to fraction form
    7,108.32/10,659.78 = 3,406.62/x
  3. Step 3: Cross multiply
    7,108.32x = 10,659.78 × 3,406.62
  4. Step 4: Simplify right side
    7,108.32x = 36,313,819.74
  5. Step 5: Solve for x
    x = 36,313,819.74/7,108.32
  6. Step 6: Final answer
    x = 5,108.64

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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.