Home / 2,210.38-3,049.05-1,380.94

Finding the Fourth Proportional to 2,210.38, 3,049.05 and 1,380.94

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Solution

The fourth proportional to 2,210.38, 3,049.05 and 1,380.94 is: 1,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,210.38 : 3,049.05 = 1,380.94 : x
  2. Step 2: Convert to fraction form
    2,210.38/3,049.05 = 1,380.94/x
  3. Step 3: Cross multiply
    2,210.38x = 3,049.05 × 1,380.94
  4. Step 4: Simplify right side
    2,210.38x = 4,210,552.66
  5. Step 5: Solve for x
    x = 4,210,552.66/2,210.38
  6. Step 6: Final answer
    x = 1,904.90

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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.