Home / 4,990.29-6,884.24-3,221.25

Finding the Fourth Proportional to 4,990.29, 6,884.24 and 3,221.25

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Solution

The fourth proportional to 4,990.29, 6,884.24 and 3,221.25 is: 4,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,990.29 : 6,884.24 = 3,221.25 : x
  2. Step 2: Convert to fraction form
    4,990.29/6,884.24 = 3,221.25/x
  3. Step 3: Cross multiply
    4,990.29x = 6,884.24 × 3,221.25
  4. Step 4: Simplify right side
    4,990.29x = 22,175,841.99
  5. Step 5: Solve for x
    x = 22,175,841.99/4,990.29
  6. Step 6: Final answer
    x = 4,443.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.