Home / 2,308.87-3,186.40-1,314.14

Finding the Fourth Proportional to 2,308.87, 3,186.40 and 1,314.14

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Solution

The fourth proportional to 2,308.87, 3,186.40 and 1,314.14 is: 1,813.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.87 : 3,186.40 = 1,314.14 : x
  2. Step 2: Convert to fraction form
    2,308.87/3,186.40 = 1,314.14/x
  3. Step 3: Cross multiply
    2,308.87x = 3,186.40 × 1,314.14
  4. Step 4: Simplify right side
    2,308.87x = 4,187,388.10
  5. Step 5: Solve for x
    x = 4,187,388.10/2,308.87
  6. Step 6: Final answer
    x = 1,813.61

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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.