Home / 3,221.21-4,823.90-1,572.44

Finding the Fourth Proportional to 3,221.21, 4,823.90 and 1,572.44

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Solution

The fourth proportional to 3,221.21, 4,823.90 and 1,572.44 is: 2,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.21 : 4,823.90 = 1,572.44 : x
  2. Step 2: Convert to fraction form
    3,221.21/4,823.90 = 1,572.44/x
  3. Step 3: Cross multiply
    3,221.21x = 4,823.90 × 1,572.44
  4. Step 4: Simplify right side
    3,221.21x = 7,585,293.32
  5. Step 5: Solve for x
    x = 7,585,293.32/3,221.21
  6. Step 6: Final answer
    x = 2,354.80

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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.