Home / 5,180.90-7,764.41-1,890.89

Finding the Fourth Proportional to 5,180.90, 7,764.41 and 1,890.89

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Solution

The fourth proportional to 5,180.90, 7,764.41 and 1,890.89 is: 2,833.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.90 : 7,764.41 = 1,890.89 : x
  2. Step 2: Convert to fraction form
    5,180.90/7,764.41 = 1,890.89/x
  3. Step 3: Cross multiply
    5,180.90x = 7,764.41 × 1,890.89
  4. Step 4: Simplify right side
    5,180.90x = 14,681,596.95
  5. Step 5: Solve for x
    x = 14,681,596.95/5,180.90
  6. Step 6: Final answer
    x = 2,833.80

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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.