Home / 2,267.13-3,128.09-1,382.88

Finding the Fourth Proportional to 2,267.13, 3,128.09 and 1,382.88

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Solution

The fourth proportional to 2,267.13, 3,128.09 and 1,382.88 is: 1,908.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.13 : 3,128.09 = 1,382.88 : x
  2. Step 2: Convert to fraction form
    2,267.13/3,128.09 = 1,382.88/x
  3. Step 3: Cross multiply
    2,267.13x = 3,128.09 × 1,382.88
  4. Step 4: Simplify right side
    2,267.13x = 4,325,766.18
  5. Step 5: Solve for x
    x = 4,325,766.18/2,267.13
  6. Step 6: Final answer
    x = 1,908.04

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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.