Home / 2,767.82-4,135.55-2,670.93

Finding the Fourth Proportional to 2,767.82, 4,135.55 and 2,670.93

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Solution

The fourth proportional to 2,767.82, 4,135.55 and 2,670.93 is: 3,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,767.82 : 4,135.55 = 2,670.93 : x
  2. Step 2: Convert to fraction form
    2,767.82/4,135.55 = 2,670.93/x
  3. Step 3: Cross multiply
    2,767.82x = 4,135.55 × 2,670.93
  4. Step 4: Simplify right side
    2,767.82x = 11,045,751.21
  5. Step 5: Solve for x
    x = 11,045,751.21/2,767.82
  6. Step 6: Final answer
    x = 3,990.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.