Home / 2,787.35-4,175.60-1,551

Finding the Fourth Proportional to 2,787.35, 4,175.60 and 1,551

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Solution

The fourth proportional to 2,787.35, 4,175.60 and 1,551 is: 2,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.35 : 4,175.60 = 1,551 : x
  2. Step 2: Convert to fraction form
    2,787.35/4,175.60 = 1,551/x
  3. Step 3: Cross multiply
    2,787.35x = 4,175.60 × 1,551
  4. Step 4: Simplify right side
    2,787.35x = 6,476,347.85
  5. Step 5: Solve for x
    x = 6,476,347.85/2,787.35
  6. Step 6: Final answer
    x = 2,323.48

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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.