Home / 3,621.99-4,998.36-2,129.97

Finding the Fourth Proportional to 3,621.99, 4,998.36 and 2,129.97

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Solution

The fourth proportional to 3,621.99, 4,998.36 and 2,129.97 is: 2,939.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621.99 : 4,998.36 = 2,129.97 : x
  2. Step 2: Convert to fraction form
    3,621.99/4,998.36 = 2,129.97/x
  3. Step 3: Cross multiply
    3,621.99x = 4,998.36 × 2,129.97
  4. Step 4: Simplify right side
    3,621.99x = 10,646,331.86
  5. Step 5: Solve for x
    x = 10,646,331.86/3,621.99
  6. Step 6: Final answer
    x = 2,939.36

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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.