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Finding the Fourth Proportional to 4,446.90, 6,671.46 and 1,326.90

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Solution

The fourth proportional to 4,446.90, 6,671.46 and 1,326.90 is: 1,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,446.90 : 6,671.46 = 1,326.90 : x
  2. Step 2: Convert to fraction form
    4,446.90/6,671.46 = 1,326.90/x
  3. Step 3: Cross multiply
    4,446.90x = 6,671.46 × 1,326.90
  4. Step 4: Simplify right side
    4,446.90x = 8,852,360.27
  5. Step 5: Solve for x
    x = 8,852,360.27/4,446.90
  6. Step 6: Final answer
    x = 1,990.68

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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.