Home / 2,766.78-4,151.39-1,902.51

Finding the Fourth Proportional to 2,766.78, 4,151.39 and 1,902.51

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Solution

The fourth proportional to 2,766.78, 4,151.39 and 1,902.51 is: 2,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.78 : 4,151.39 = 1,902.51 : x
  2. Step 2: Convert to fraction form
    2,766.78/4,151.39 = 1,902.51/x
  3. Step 3: Cross multiply
    2,766.78x = 4,151.39 × 1,902.51
  4. Step 4: Simplify right side
    2,766.78x = 7,898,051.48
  5. Step 5: Solve for x
    x = 7,898,051.48/2,766.78
  6. Step 6: Final answer
    x = 2,854.60

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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.