Home / 1,484.18-2,226.21-388.53

Finding the Fourth Proportional to 1,484.18, 2,226.21 and 388.53

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Solution

The fourth proportional to 1,484.18, 2,226.21 and 388.53 is: 582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.18 : 2,226.21 = 388.53 : x
  2. Step 2: Convert to fraction form
    1,484.18/2,226.21 = 388.53/x
  3. Step 3: Cross multiply
    1,484.18x = 2,226.21 × 388.53
  4. Step 4: Simplify right side
    1,484.18x = 864,949.37
  5. Step 5: Solve for x
    x = 864,949.37/1,484.18
  6. Step 6: Final answer
    x = 582.78

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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.