Home / 2,266.58-3,128.84-1,382.70

Finding the Fourth Proportional to 2,266.58, 3,128.84 and 1,382.70

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Solution

The fourth proportional to 2,266.58, 3,128.84 and 1,382.70 is: 1,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.58 : 3,128.84 = 1,382.70 : x
  2. Step 2: Convert to fraction form
    2,266.58/3,128.84 = 1,382.70/x
  3. Step 3: Cross multiply
    2,266.58x = 3,128.84 × 1,382.70
  4. Step 4: Simplify right side
    2,266.58x = 4,326,247.07
  5. Step 5: Solve for x
    x = 4,326,247.07/2,266.58
  6. Step 6: Final answer
    x = 1,908.71

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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.