Home / 5,370.78-8,051.31-2,768.25

Finding the Fourth Proportional to 5,370.78, 8,051.31 and 2,768.25

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Solution

The fourth proportional to 5,370.78, 8,051.31 and 2,768.25 is: 4,149.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.78 : 8,051.31 = 2,768.25 : x
  2. Step 2: Convert to fraction form
    5,370.78/8,051.31 = 2,768.25/x
  3. Step 3: Cross multiply
    5,370.78x = 8,051.31 × 2,768.25
  4. Step 4: Simplify right side
    5,370.78x = 22,288,038.91
  5. Step 5: Solve for x
    x = 22,288,038.91/5,370.78
  6. Step 6: Final answer
    x = 4,149.87

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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.