Home / 1,816.56-2,723.76-660.96

Finding the Fourth Proportional to 1,816.56, 2,723.76 and 660.96

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Solution

The fourth proportional to 1,816.56, 2,723.76 and 660.96 is: 991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.56 : 2,723.76 = 660.96 : x
  2. Step 2: Convert to fraction form
    1,816.56/2,723.76 = 660.96/x
  3. Step 3: Cross multiply
    1,816.56x = 2,723.76 × 660.96
  4. Step 4: Simplify right side
    1,816.56x = 1,800,296.41
  5. Step 5: Solve for x
    x = 1,800,296.41/1,816.56
  6. Step 6: Final answer
    x = 991.05

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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.