Home / 2,359.26-3,255.96-1,311.39

Finding the Fourth Proportional to 2,359.26, 3,255.96 and 1,311.39

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Solution

The fourth proportional to 2,359.26, 3,255.96 and 1,311.39 is: 1,809.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.26 : 3,255.96 = 1,311.39 : x
  2. Step 2: Convert to fraction form
    2,359.26/3,255.96 = 1,311.39/x
  3. Step 3: Cross multiply
    2,359.26x = 3,255.96 × 1,311.39
  4. Step 4: Simplify right side
    2,359.26x = 4,269,833.38
  5. Step 5: Solve for x
    x = 4,269,833.38/2,359.26
  6. Step 6: Final answer
    x = 1,809.82

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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.