Home / 2,135.10-3,202.65-1,900.20

Finding the Fourth Proportional to 2,135.10, 3,202.65 and 1,900.20

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Solution

The fourth proportional to 2,135.10, 3,202.65 and 1,900.20 is: 2,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.10 : 3,202.65 = 1,900.20 : x
  2. Step 2: Convert to fraction form
    2,135.10/3,202.65 = 1,900.20/x
  3. Step 3: Cross multiply
    2,135.10x = 3,202.65 × 1,900.20
  4. Step 4: Simplify right side
    2,135.10x = 6,085,675.53
  5. Step 5: Solve for x
    x = 6,085,675.53/2,135.10
  6. Step 6: Final answer
    x = 2,850.30

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1.5x scale

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.