Home / 4,919.15-6,787.31-4,125.69

Finding the Fourth Proportional to 4,919.15, 6,787.31 and 4,125.69

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Solution

The fourth proportional to 4,919.15, 6,787.31 and 4,125.69 is: 5,692.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.15 : 6,787.31 = 4,125.69 : x
  2. Step 2: Convert to fraction form
    4,919.15/6,787.31 = 4,125.69/x
  3. Step 3: Cross multiply
    4,919.15x = 6,787.31 × 4,125.69
  4. Step 4: Simplify right side
    4,919.15x = 28,002,316.37
  5. Step 5: Solve for x
    x = 28,002,316.37/4,919.15
  6. Step 6: Final answer
    x = 5,692.51

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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.