Home / 3,479.74-5,221.29-1,531.69

Finding the Fourth Proportional to 3,479.74, 5,221.29 and 1,531.69

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Solution

The fourth proportional to 3,479.74, 5,221.29 and 1,531.69 is: 2,298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.74 : 5,221.29 = 1,531.69 : x
  2. Step 2: Convert to fraction form
    3,479.74/5,221.29 = 1,531.69/x
  3. Step 3: Cross multiply
    3,479.74x = 5,221.29 × 1,531.69
  4. Step 4: Simplify right side
    3,479.74x = 7,997,397.68
  5. Step 5: Solve for x
    x = 7,997,397.68/3,479.74
  6. Step 6: Final answer
    x = 2,298.27

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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.