Home / 2,663.28-3,670.92-1,778.76

Finding the Fourth Proportional to 2,663.28, 3,670.92 and 1,778.76

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Solution

The fourth proportional to 2,663.28, 3,670.92 and 1,778.76 is: 2,451.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.28 : 3,670.92 = 1,778.76 : x
  2. Step 2: Convert to fraction form
    2,663.28/3,670.92 = 1,778.76/x
  3. Step 3: Cross multiply
    2,663.28x = 3,670.92 × 1,778.76
  4. Step 4: Simplify right side
    2,663.28x = 6,529,685.66
  5. Step 5: Solve for x
    x = 6,529,685.66/2,663.28
  6. Step 6: Final answer
    x = 2,451.75

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