Home / 4,221.18-6,333.05-2,990.97

Finding the Fourth Proportional to 4,221.18, 6,333.05 and 2,990.97

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Solution

The fourth proportional to 4,221.18, 6,333.05 and 2,990.97 is: 4,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.18 : 6,333.05 = 2,990.97 : x
  2. Step 2: Convert to fraction form
    4,221.18/6,333.05 = 2,990.97/x
  3. Step 3: Cross multiply
    4,221.18x = 6,333.05 × 2,990.97
  4. Step 4: Simplify right side
    4,221.18x = 18,941,915.94
  5. Step 5: Solve for x
    x = 18,941,915.94/4,221.18
  6. Step 6: Final answer
    x = 4,487.36

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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.