Home / 4,919.36-6,787.20-2,822.72

Finding the Fourth Proportional to 4,919.36, 6,787.20 and 2,822.72

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Solution

The fourth proportional to 4,919.36, 6,787.20 and 2,822.72 is: 3,894.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.36 : 6,787.20 = 2,822.72 : x
  2. Step 2: Convert to fraction form
    4,919.36/6,787.20 = 2,822.72/x
  3. Step 3: Cross multiply
    4,919.36x = 6,787.20 × 2,822.72
  4. Step 4: Simplify right side
    4,919.36x = 19,158,365.18
  5. Step 5: Solve for x
    x = 19,158,365.18/4,919.36
  6. Step 6: Final answer
    x = 3,894.48

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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.