Home / 4,188.87-6,278.91-1,414.58

Finding the Fourth Proportional to 4,188.87, 6,278.91 and 1,414.58

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Solution

The fourth proportional to 4,188.87, 6,278.91 and 1,414.58 is: 2,120.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.87 : 6,278.91 = 1,414.58 : x
  2. Step 2: Convert to fraction form
    4,188.87/6,278.91 = 1,414.58/x
  3. Step 3: Cross multiply
    4,188.87x = 6,278.91 × 1,414.58
  4. Step 4: Simplify right side
    4,188.87x = 8,881,989.11
  5. Step 5: Solve for x
    x = 8,881,989.11/4,188.87
  6. Step 6: Final answer
    x = 2,120.38

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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.