Home / 2,919.60-4,383.50-2,787.35

Finding the Fourth Proportional to 2,919.60, 4,383.50 and 2,787.35

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Solution

The fourth proportional to 2,919.60, 4,383.50 and 2,787.35 is: 4,184.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.60 : 4,383.50 = 2,787.35 : x
  2. Step 2: Convert to fraction form
    2,919.60/4,383.50 = 2,787.35/x
  3. Step 3: Cross multiply
    2,919.60x = 4,383.50 × 2,787.35
  4. Step 4: Simplify right side
    2,919.60x = 12,218,348.73
  5. Step 5: Solve for x
    x = 12,218,348.73/2,919.60
  6. Step 6: Final answer
    x = 4,184.94

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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.