Home / 3,480.41-5,221.42-1,171.91

Finding the Fourth Proportional to 3,480.41, 5,221.42 and 1,171.91

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Solution

The fourth proportional to 3,480.41, 5,221.42 and 1,171.91 is: 1,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.41 : 5,221.42 = 1,171.91 : x
  2. Step 2: Convert to fraction form
    3,480.41/5,221.42 = 1,171.91/x
  3. Step 3: Cross multiply
    3,480.41x = 5,221.42 × 1,171.91
  4. Step 4: Simplify right side
    3,480.41x = 6,119,008.21
  5. Step 5: Solve for x
    x = 6,119,008.21/3,480.41
  6. Step 6: Final answer
    x = 1,758.13

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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.