Home / 3,464.21-5,196.16-1,272.78

Finding the Fourth Proportional to 3,464.21, 5,196.16 and 1,272.78

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Solution

The fourth proportional to 3,464.21, 5,196.16 and 1,272.78 is: 1,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,464.21 : 5,196.16 = 1,272.78 : x
  2. Step 2: Convert to fraction form
    3,464.21/5,196.16 = 1,272.78/x
  3. Step 3: Cross multiply
    3,464.21x = 5,196.16 × 1,272.78
  4. Step 4: Simplify right side
    3,464.21x = 6,613,543.47
  5. Step 5: Solve for x
    x = 6,613,543.47/3,464.21
  6. Step 6: Final answer
    x = 1,909.11

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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.