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Finding the Fourth Proportional to 4,220.60, 6,330.90 and 1,446.90

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Solution

The fourth proportional to 4,220.60, 6,330.90 and 1,446.90 is: 2,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.60 : 6,330.90 = 1,446.90 : x
  2. Step 2: Convert to fraction form
    4,220.60/6,330.90 = 1,446.90/x
  3. Step 3: Cross multiply
    4,220.60x = 6,330.90 × 1,446.90
  4. Step 4: Simplify right side
    4,220.60x = 9,160,179.21
  5. Step 5: Solve for x
    x = 9,160,179.21/4,220.60
  6. Step 6: Final answer
    x = 2,170.35

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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.