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Finding the Fourth Proportional to 2,484.99, 3,727.85 and 818.81

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Solution

The fourth proportional to 2,484.99, 3,727.85 and 818.81 is: 1,228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,484.99 : 3,727.85 = 818.81 : x
  2. Step 2: Convert to fraction form
    2,484.99/3,727.85 = 818.81/x
  3. Step 3: Cross multiply
    2,484.99x = 3,727.85 × 818.81
  4. Step 4: Simplify right side
    2,484.99x = 3,052,382.22
  5. Step 5: Solve for x
    x = 3,052,382.22/2,484.99
  6. Step 6: Final answer
    x = 1,228.33

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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.