Home / 6,669.38-9,998.66-2,776.70

Finding the Fourth Proportional to 6,669.38, 9,998.66 and 2,776.70

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Solution

The fourth proportional to 6,669.38, 9,998.66 and 2,776.70 is: 4,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.38 : 9,998.66 = 2,776.70 : x
  2. Step 2: Convert to fraction form
    6,669.38/9,998.66 = 2,776.70/x
  3. Step 3: Cross multiply
    6,669.38x = 9,998.66 × 2,776.70
  4. Step 4: Simplify right side
    6,669.38x = 27,763,279.22
  5. Step 5: Solve for x
    x = 27,763,279.22/6,669.38
  6. Step 6: Final answer
    x = 4,162.80

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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.