Home / 3,190.40-4,772.10-2,863.70

Finding the Fourth Proportional to 3,190.40, 4,772.10 and 2,863.70

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Solution

The fourth proportional to 3,190.40, 4,772.10 and 2,863.70 is: 4,283.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.40 : 4,772.10 = 2,863.70 : x
  2. Step 2: Convert to fraction form
    3,190.40/4,772.10 = 2,863.70/x
  3. Step 3: Cross multiply
    3,190.40x = 4,772.10 × 2,863.70
  4. Step 4: Simplify right side
    3,190.40x = 13,665,862.77
  5. Step 5: Solve for x
    x = 13,665,862.77/3,190.40
  6. Step 6: Final answer
    x = 4,283.43

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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.