Home / 2,790.06-3,849.88-1,670.73

Finding the Fourth Proportional to 2,790.06, 3,849.88 and 1,670.73

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Solution

The fourth proportional to 2,790.06, 3,849.88 and 1,670.73 is: 2,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.06 : 3,849.88 = 1,670.73 : x
  2. Step 2: Convert to fraction form
    2,790.06/3,849.88 = 1,670.73/x
  3. Step 3: Cross multiply
    2,790.06x = 3,849.88 × 1,670.73
  4. Step 4: Simplify right side
    2,790.06x = 6,432,110.01
  5. Step 5: Solve for x
    x = 6,432,110.01/2,790.06
  6. Step 6: Final answer
    x = 2,305.37

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.