Home / 2,787.78-4,176.81-1,486.92

Finding the Fourth Proportional to 2,787.78, 4,176.81 and 1,486.92

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Solution

The fourth proportional to 2,787.78, 4,176.81 and 1,486.92 is: 2,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,787.78 : 4,176.81 = 1,486.92 : x
  2. Step 2: Convert to fraction form
    2,787.78/4,176.81 = 1,486.92/x
  3. Step 3: Cross multiply
    2,787.78x = 4,176.81 × 1,486.92
  4. Step 4: Simplify right side
    2,787.78x = 6,210,582.33
  5. Step 5: Solve for x
    x = 6,210,582.33/2,787.78
  6. Step 6: Final answer
    x = 2,227.79

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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.