Home / 2,529.76-3,787.44-1,915.96

Finding the Fourth Proportional to 2,529.76, 3,787.44 and 1,915.96

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Solution

The fourth proportional to 2,529.76, 3,787.44 and 1,915.96 is: 2,868.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,529.76 : 3,787.44 = 1,915.96 : x
  2. Step 2: Convert to fraction form
    2,529.76/3,787.44 = 1,915.96/x
  3. Step 3: Cross multiply
    2,529.76x = 3,787.44 × 1,915.96
  4. Step 4: Simplify right side
    2,529.76x = 7,256,583.54
  5. Step 5: Solve for x
    x = 7,256,583.54/2,529.76
  6. Step 6: Final answer
    x = 2,868.49

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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.