Home / 4,278.92-6,418.42-1,357

Finding the Fourth Proportional to 4,278.92, 6,418.42 and 1,357

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Solution

The fourth proportional to 4,278.92, 6,418.42 and 1,357 is: 2,035.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.92 : 6,418.42 = 1,357 : x
  2. Step 2: Convert to fraction form
    4,278.92/6,418.42 = 1,357/x
  3. Step 3: Cross multiply
    4,278.92x = 6,418.42 × 1,357
  4. Step 4: Simplify right side
    4,278.92x = 8,709,795.94
  5. Step 5: Solve for x
    x = 8,709,795.94/4,278.92
  6. Step 6: Final answer
    x = 2,035.51

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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.