Home / 2,310.43-3,188.40-1,315.52

Finding the Fourth Proportional to 2,310.43, 3,188.40 and 1,315.52

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Solution

The fourth proportional to 2,310.43, 3,188.40 and 1,315.52 is: 1,815.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.43 : 3,188.40 = 1,315.52 : x
  2. Step 2: Convert to fraction form
    2,310.43/3,188.40 = 1,315.52/x
  3. Step 3: Cross multiply
    2,310.43x = 3,188.40 × 1,315.52
  4. Step 4: Simplify right side
    2,310.43x = 4,194,403.97
  5. Step 5: Solve for x
    x = 4,194,403.97/2,310.43
  6. Step 6: Final answer
    x = 1,815.42

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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.