Home / 2,310.76-3,189.18-1,367.38

Finding the Fourth Proportional to 2,310.76, 3,189.18 and 1,367.38

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Solution

The fourth proportional to 2,310.76, 3,189.18 and 1,367.38 is: 1,887.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,310.76 : 3,189.18 = 1,367.38 : x
  2. Step 2: Convert to fraction form
    2,310.76/3,189.18 = 1,367.38/x
  3. Step 3: Cross multiply
    2,310.76x = 3,189.18 × 1,367.38
  4. Step 4: Simplify right side
    2,310.76x = 4,360,820.95
  5. Step 5: Solve for x
    x = 4,360,820.95/2,310.76
  6. Step 6: Final answer
    x = 1,887.18

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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.