Home / 1,479.51-2,219.27-383.85

Finding the Fourth Proportional to 1,479.51, 2,219.27 and 383.85

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Solution

The fourth proportional to 1,479.51, 2,219.27 and 383.85 is: 575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.51 : 2,219.27 = 383.85 : x
  2. Step 2: Convert to fraction form
    1,479.51/2,219.27 = 383.85/x
  3. Step 3: Cross multiply
    1,479.51x = 2,219.27 × 383.85
  4. Step 4: Simplify right side
    1,479.51x = 851,864.87
  5. Step 5: Solve for x
    x = 851,864.87/1,479.51
  6. Step 6: Final answer
    x = 575.78

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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.