Home / 5,190.62-7,787.05-1,903.75

Finding the Fourth Proportional to 5,190.62, 7,787.05 and 1,903.75

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Solution

The fourth proportional to 5,190.62, 7,787.05 and 1,903.75 is: 2,856.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,190.62 : 7,787.05 = 1,903.75 : x
  2. Step 2: Convert to fraction form
    5,190.62/7,787.05 = 1,903.75/x
  3. Step 3: Cross multiply
    5,190.62x = 7,787.05 × 1,903.75
  4. Step 4: Simplify right side
    5,190.62x = 14,824,572.21
  5. Step 5: Solve for x
    x = 14,824,572.21/5,190.62
  6. Step 6: Final answer
    x = 2,856.03

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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.