Home / 2,787.53-4,181.52-1,400.15

Finding the Fourth Proportional to 2,787.53, 4,181.52 and 1,400.15

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Solution

The fourth proportional to 2,787.53, 4,181.52 and 1,400.15 is: 2,100.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.53 : 4,181.52 = 1,400.15 : x
  2. Step 2: Convert to fraction form
    2,787.53/4,181.52 = 1,400.15/x
  3. Step 3: Cross multiply
    2,787.53x = 4,181.52 × 1,400.15
  4. Step 4: Simplify right side
    2,787.53x = 5,854,765.68
  5. Step 5: Solve for x
    x = 5,854,765.68/2,787.53
  6. Step 6: Final answer
    x = 2,100.34

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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.