Home / 3,480.16-5,221.52-1,631.87

Finding the Fourth Proportional to 3,480.16, 5,221.52 and 1,631.87

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Solution

The fourth proportional to 3,480.16, 5,221.52 and 1,631.87 is: 2,448.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.16 : 5,221.52 = 1,631.87 : x
  2. Step 2: Convert to fraction form
    3,480.16/5,221.52 = 1,631.87/x
  3. Step 3: Cross multiply
    3,480.16x = 5,221.52 × 1,631.87
  4. Step 4: Simplify right side
    3,480.16x = 8,520,833.68
  5. Step 5: Solve for x
    x = 8,520,833.68/3,480.16
  6. Step 6: Final answer
    x = 2,448.41

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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.