Home / 4,253.22-6,378.66-2,690.87

Finding the Fourth Proportional to 4,253.22, 6,378.66 and 2,690.87

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Solution

The fourth proportional to 4,253.22, 6,378.66 and 2,690.87 is: 4,035.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,253.22 : 6,378.66 = 2,690.87 : x
  2. Step 2: Convert to fraction form
    4,253.22/6,378.66 = 2,690.87/x
  3. Step 3: Cross multiply
    4,253.22x = 6,378.66 × 2,690.87
  4. Step 4: Simplify right side
    4,253.22x = 17,164,112.94
  5. Step 5: Solve for x
    x = 17,164,112.94/4,253.22
  6. Step 6: Final answer
    x = 4,035.56

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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.