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Finding the Fourth Proportional to 3,221.90, 4,835.20 and 1,468.88

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Solution

The fourth proportional to 3,221.90, 4,835.20 and 1,468.88 is: 2,204.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.90 : 4,835.20 = 1,468.88 : x
  2. Step 2: Convert to fraction form
    3,221.90/4,835.20 = 1,468.88/x
  3. Step 3: Cross multiply
    3,221.90x = 4,835.20 × 1,468.88
  4. Step 4: Simplify right side
    3,221.90x = 7,102,328.58
  5. Step 5: Solve for x
    x = 7,102,328.58/3,221.90
  6. Step 6: Final answer
    x = 2,204.39

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1.5x scale

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.