Home / 2,639.84-3,965.52-1,614.56

Finding the Fourth Proportional to 2,639.84, 3,965.52 and 1,614.56

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Solution

The fourth proportional to 2,639.84, 3,965.52 and 1,614.56 is: 2,425.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.84 : 3,965.52 = 1,614.56 : x
  2. Step 2: Convert to fraction form
    2,639.84/3,965.52 = 1,614.56/x
  3. Step 3: Cross multiply
    2,639.84x = 3,965.52 × 1,614.56
  4. Step 4: Simplify right side
    2,639.84x = 6,402,569.97
  5. Step 5: Solve for x
    x = 6,402,569.97/2,639.84
  6. Step 6: Final answer
    x = 2,425.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.