Home / 2,125.68-3,190.32-1,202.28

Finding the Fourth Proportional to 2,125.68, 3,190.32 and 1,202.28

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Solution

The fourth proportional to 2,125.68, 3,190.32 and 1,202.28 is: 1,804.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.68 : 3,190.32 = 1,202.28 : x
  2. Step 2: Convert to fraction form
    2,125.68/3,190.32 = 1,202.28/x
  3. Step 3: Cross multiply
    2,125.68x = 3,190.32 × 1,202.28
  4. Step 4: Simplify right side
    2,125.68x = 3,835,657.93
  5. Step 5: Solve for x
    x = 3,835,657.93/2,125.68
  6. Step 6: Final answer
    x = 1,804.44

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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.