Home / 2,359.13-3,255.66-1,311.26

Finding the Fourth Proportional to 2,359.13, 3,255.66 and 1,311.26

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Solution

The fourth proportional to 2,359.13, 3,255.66 and 1,311.26 is: 1,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,359.13 : 3,255.66 = 1,311.26 : x
  2. Step 2: Convert to fraction form
    2,359.13/3,255.66 = 1,311.26/x
  3. Step 3: Cross multiply
    2,359.13x = 3,255.66 × 1,311.26
  4. Step 4: Simplify right side
    2,359.13x = 4,269,000.45
  5. Step 5: Solve for x
    x = 4,269,000.45/2,359.13
  6. Step 6: Final answer
    x = 1,809.57

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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.