Home / 3,558.20-5,329.20-2,100.20

Finding the Fourth Proportional to 3,558.20, 5,329.20 and 2,100.20

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Solution

The fourth proportional to 3,558.20, 5,329.20 and 2,100.20 is: 3,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.20 : 5,329.20 = 2,100.20 : x
  2. Step 2: Convert to fraction form
    3,558.20/5,329.20 = 2,100.20/x
  3. Step 3: Cross multiply
    3,558.20x = 5,329.20 × 2,100.20
  4. Step 4: Simplify right side
    3,558.20x = 11,192,385.84
  5. Step 5: Solve for x
    x = 11,192,385.84/3,558.20
  6. Step 6: Final answer
    x = 3,145.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.