Home / 1,484.30-2,226.26-388.66

Finding the Fourth Proportional to 1,484.30, 2,226.26 and 388.66

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Solution

The fourth proportional to 1,484.30, 2,226.26 and 388.66 is: 582.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,484.30 : 2,226.26 = 388.66 : x
  2. Step 2: Convert to fraction form
    1,484.30/2,226.26 = 388.66/x
  3. Step 3: Cross multiply
    1,484.30x = 2,226.26 × 388.66
  4. Step 4: Simplify right side
    1,484.30x = 865,258.21
  5. Step 5: Solve for x
    x = 865,258.21/1,484.30
  6. Step 6: Final answer
    x = 582.94

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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.