Home / 4,400.09-6,600.79-1,279.70

Finding the Fourth Proportional to 4,400.09, 6,600.79 and 1,279.70

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Solution

The fourth proportional to 4,400.09, 6,600.79 and 1,279.70 is: 1,919.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,400.09 : 6,600.79 = 1,279.70 : x
  2. Step 2: Convert to fraction form
    4,400.09/6,600.79 = 1,279.70/x
  3. Step 3: Cross multiply
    4,400.09x = 6,600.79 × 1,279.70
  4. Step 4: Simplify right side
    4,400.09x = 8,446,994.76
  5. Step 5: Solve for x
    x = 8,446,994.76/4,400.09
  6. Step 6: Final answer
    x = 1,919.73

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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.