Home / 3,611.10-4,983.03-2,118.90

Finding the Fourth Proportional to 3,611.10, 4,983.03 and 2,118.90

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Solution

The fourth proportional to 3,611.10, 4,983.03 and 2,118.90 is: 2,923.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.10 : 4,983.03 = 2,118.90 : x
  2. Step 2: Convert to fraction form
    3,611.10/4,983.03 = 2,118.90/x
  3. Step 3: Cross multiply
    3,611.10x = 4,983.03 × 2,118.90
  4. Step 4: Simplify right side
    3,611.10x = 10,558,542.27
  5. Step 5: Solve for x
    x = 10,558,542.27/3,611.10
  6. Step 6: Final answer
    x = 2,923.91

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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.