Home / 3,619.04-4,990.72-2,202.92

Finding the Fourth Proportional to 3,619.04, 4,990.72 and 2,202.92

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Solution

The fourth proportional to 3,619.04, 4,990.72 and 2,202.92 is: 3,037.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.04 : 4,990.72 = 2,202.92 : x
  2. Step 2: Convert to fraction form
    3,619.04/4,990.72 = 2,202.92/x
  3. Step 3: Cross multiply
    3,619.04x = 4,990.72 × 2,202.92
  4. Step 4: Simplify right side
    3,619.04x = 10,994,156.90
  5. Step 5: Solve for x
    x = 10,994,156.90/3,619.04
  6. Step 6: Final answer
    x = 3,037.87

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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.