Home / 3,616.85-4,991.29-2,124.83

Finding the Fourth Proportional to 3,616.85, 4,991.29 and 2,124.83

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Solution

The fourth proportional to 3,616.85, 4,991.29 and 2,124.83 is: 2,932.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616.85 : 4,991.29 = 2,124.83 : x
  2. Step 2: Convert to fraction form
    3,616.85/4,991.29 = 2,124.83/x
  3. Step 3: Cross multiply
    3,616.85x = 4,991.29 × 2,124.83
  4. Step 4: Simplify right side
    3,616.85x = 10,605,649.90
  5. Step 5: Solve for x
    x = 10,605,649.90/3,616.85
  6. Step 6: Final answer
    x = 2,932.29

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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.