Home / 1,479.11-2,218.66-383.47

Finding the Fourth Proportional to 1,479.11, 2,218.66 and 383.47

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Solution

The fourth proportional to 1,479.11, 2,218.66 and 383.47 is: 575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479.11 : 2,218.66 = 383.47 : x
  2. Step 2: Convert to fraction form
    1,479.11/2,218.66 = 383.47/x
  3. Step 3: Cross multiply
    1,479.11x = 2,218.66 × 383.47
  4. Step 4: Simplify right side
    1,479.11x = 850,789.55
  5. Step 5: Solve for x
    x = 850,789.55/1,479.11
  6. Step 6: Final answer
    x = 575.20

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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.