Home / 3,469.71-5,205.77-1,621.02

Finding the Fourth Proportional to 3,469.71, 5,205.77 and 1,621.02

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Solution

The fourth proportional to 3,469.71, 5,205.77 and 1,621.02 is: 2,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,469.71 : 5,205.77 = 1,621.02 : x
  2. Step 2: Convert to fraction form
    3,469.71/5,205.77 = 1,621.02/x
  3. Step 3: Cross multiply
    3,469.71x = 5,205.77 × 1,621.02
  4. Step 4: Simplify right side
    3,469.71x = 8,438,649.18
  5. Step 5: Solve for x
    x = 8,438,649.18/3,469.71
  6. Step 6: Final answer
    x = 2,432.09

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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.