Home / 3,252.21-4,878.31-787.03

Finding the Fourth Proportional to 3,252.21, 4,878.31 and 787.03

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Solution

The fourth proportional to 3,252.21, 4,878.31 and 787.03 is: 1,180.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,252.21 : 4,878.31 = 787.03 : x
  2. Step 2: Convert to fraction form
    3,252.21/4,878.31 = 787.03/x
  3. Step 3: Cross multiply
    3,252.21x = 4,878.31 × 787.03
  4. Step 4: Simplify right side
    3,252.21x = 3,839,376.84
  5. Step 5: Solve for x
    x = 3,839,376.84/3,252.21
  6. Step 6: Final answer
    x = 1,180.54

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1.5x scale

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.