Home / 2,189.72-3,021.35-1,593.15

Finding the Fourth Proportional to 2,189.72, 3,021.35 and 1,593.15

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Solution

The fourth proportional to 2,189.72, 3,021.35 and 1,593.15 is: 2,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189.72 : 3,021.35 = 1,593.15 : x
  2. Step 2: Convert to fraction form
    2,189.72/3,021.35 = 1,593.15/x
  3. Step 3: Cross multiply
    2,189.72x = 3,021.35 × 1,593.15
  4. Step 4: Simplify right side
    2,189.72x = 4,813,455.79
  5. Step 5: Solve for x
    x = 4,813,455.79/2,189.72
  6. Step 6: Final answer
    x = 2,198.21

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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.