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Finding the Fourth Proportional to 2,459.87, 3,394.64 and 1,340.81

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Solution

The fourth proportional to 2,459.87, 3,394.64 and 1,340.81 is: 1,850.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.87 : 3,394.64 = 1,340.81 : x
  2. Step 2: Convert to fraction form
    2,459.87/3,394.64 = 1,340.81/x
  3. Step 3: Cross multiply
    2,459.87x = 3,394.64 × 1,340.81
  4. Step 4: Simplify right side
    2,459.87x = 4,551,550.29
  5. Step 5: Solve for x
    x = 4,551,550.29/2,459.87
  6. Step 6: Final answer
    x = 1,850.32

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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.