Home / 2,310.43-3,188.46-1,315.75

Finding the Fourth Proportional to 2,310.43, 3,188.46 and 1,315.75

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Solution

The fourth proportional to 2,310.43, 3,188.46 and 1,315.75 is: 1,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.43 : 3,188.46 = 1,315.75 : x
  2. Step 2: Convert to fraction form
    2,310.43/3,188.46 = 1,315.75/x
  3. Step 3: Cross multiply
    2,310.43x = 3,188.46 × 1,315.75
  4. Step 4: Simplify right side
    2,310.43x = 4,195,216.25
  5. Step 5: Solve for x
    x = 4,195,216.25/2,310.43
  6. Step 6: Final answer
    x = 1,815.77

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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.