Home / 4,626.78-6,380.47-3,918.57

Finding the Fourth Proportional to 4,626.78, 6,380.47 and 3,918.57

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Solution

The fourth proportional to 4,626.78, 6,380.47 and 3,918.57 is: 5,403.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,626.78 : 6,380.47 = 3,918.57 : x
  2. Step 2: Convert to fraction form
    4,626.78/6,380.47 = 3,918.57/x
  3. Step 3: Cross multiply
    4,626.78x = 6,380.47 × 3,918.57
  4. Step 4: Simplify right side
    4,626.78x = 25,002,266.83
  5. Step 5: Solve for x
    x = 25,002,266.83/4,626.78
  6. Step 6: Final answer
    x = 5,403.82

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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.