Home / 2,145.45-3,217.77-1,049.13

Finding the Fourth Proportional to 2,145.45, 3,217.77 and 1,049.13

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Solution

The fourth proportional to 2,145.45, 3,217.77 and 1,049.13 is: 1,573.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.45 : 3,217.77 = 1,049.13 : x
  2. Step 2: Convert to fraction form
    2,145.45/3,217.77 = 1,049.13/x
  3. Step 3: Cross multiply
    2,145.45x = 3,217.77 × 1,049.13
  4. Step 4: Simplify right side
    2,145.45x = 3,375,859.04
  5. Step 5: Solve for x
    x = 3,375,859.04/2,145.45
  6. Step 6: Final answer
    x = 1,573.50

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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.