Home / 4,890.78-6,747.62-2,766.06

Finding the Fourth Proportional to 4,890.78, 6,747.62 and 2,766.06

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Solution

The fourth proportional to 4,890.78, 6,747.62 and 2,766.06 is: 3,816.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.78 : 6,747.62 = 2,766.06 : x
  2. Step 2: Convert to fraction form
    4,890.78/6,747.62 = 2,766.06/x
  3. Step 3: Cross multiply
    4,890.78x = 6,747.62 × 2,766.06
  4. Step 4: Simplify right side
    4,890.78x = 18,664,307.95
  5. Step 5: Solve for x
    x = 18,664,307.95/4,890.78
  6. Step 6: Final answer
    x = 3,816.22

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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.