Home / 1,192.12-1,787.88-575.44

Finding the Fourth Proportional to 1,192.12, 1,787.88 and 575.44

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Solution

The fourth proportional to 1,192.12, 1,787.88 and 575.44 is: 863.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.12 : 1,787.88 = 575.44 : x
  2. Step 2: Convert to fraction form
    1,192.12/1,787.88 = 575.44/x
  3. Step 3: Cross multiply
    1,192.12x = 1,787.88 × 575.44
  4. Step 4: Simplify right side
    1,192.12x = 1,028,817.67
  5. Step 5: Solve for x
    x = 1,028,817.67/1,192.12
  6. Step 6: Final answer
    x = 863.02

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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.