Home / 2,310.23-3,188.19-1,315.49

Finding the Fourth Proportional to 2,310.23, 3,188.19 and 1,315.49

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Solution

The fourth proportional to 2,310.23, 3,188.19 and 1,315.49 is: 1,815.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.23 : 3,188.19 = 1,315.49 : x
  2. Step 2: Convert to fraction form
    2,310.23/3,188.19 = 1,315.49/x
  3. Step 3: Cross multiply
    2,310.23x = 3,188.19 × 1,315.49
  4. Step 4: Simplify right side
    2,310.23x = 4,194,016.12
  5. Step 5: Solve for x
    x = 4,194,016.12/2,310.23
  6. Step 6: Final answer
    x = 1,815.41

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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.