Home / 3,287.84-4,928.80-1,643.36

Finding the Fourth Proportional to 3,287.84, 4,928.80 and 1,643.36

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Solution

The fourth proportional to 3,287.84, 4,928.80 and 1,643.36 is: 2,463.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,287.84 : 4,928.80 = 1,643.36 : x
  2. Step 2: Convert to fraction form
    3,287.84/4,928.80 = 1,643.36/x
  3. Step 3: Cross multiply
    3,287.84x = 4,928.80 × 1,643.36
  4. Step 4: Simplify right side
    3,287.84x = 8,099,792.77
  5. Step 5: Solve for x
    x = 8,099,792.77/3,287.84
  6. Step 6: Final answer
    x = 2,463.56

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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.