Home / 3,621.85-4,996.97-2,129.22

Finding the Fourth Proportional to 3,621.85, 4,996.97 and 2,129.22

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Solution

The fourth proportional to 3,621.85, 4,996.97 and 2,129.22 is: 2,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.85 : 4,996.97 = 2,129.22 : x
  2. Step 2: Convert to fraction form
    3,621.85/4,996.97 = 2,129.22/x
  3. Step 3: Cross multiply
    3,621.85x = 4,996.97 × 2,129.22
  4. Step 4: Simplify right side
    3,621.85x = 10,639,648.46
  5. Step 5: Solve for x
    x = 10,639,648.46/3,621.85
  6. Step 6: Final answer
    x = 2,937.63

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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.