Home / 3,479.22-5,214.92-1,398.74

Finding the Fourth Proportional to 3,479.22, 5,214.92 and 1,398.74

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Solution

The fourth proportional to 3,479.22, 5,214.92 and 1,398.74 is: 2,096.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.22 : 5,214.92 = 1,398.74 : x
  2. Step 2: Convert to fraction form
    3,479.22/5,214.92 = 1,398.74/x
  3. Step 3: Cross multiply
    3,479.22x = 5,214.92 × 1,398.74
  4. Step 4: Simplify right side
    3,479.22x = 7,294,284.13
  5. Step 5: Solve for x
    x = 7,294,284.13/3,479.22
  6. Step 6: Final answer
    x = 2,096.53

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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.