Home / 4,919.54-6,787.90-3,150.80

Finding the Fourth Proportional to 4,919.54, 6,787.90 and 3,150.80

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Solution

The fourth proportional to 4,919.54, 6,787.90 and 3,150.80 is: 4,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.54 : 6,787.90 = 3,150.80 : x
  2. Step 2: Convert to fraction form
    4,919.54/6,787.90 = 3,150.80/x
  3. Step 3: Cross multiply
    4,919.54x = 6,787.90 × 3,150.80
  4. Step 4: Simplify right side
    4,919.54x = 21,387,310.77
  5. Step 5: Solve for x
    x = 21,387,310.77/4,919.54
  6. Step 6: Final answer
    x = 4,347.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.