Home / 5,291.89-7,940.13-2,518.54

Finding the Fourth Proportional to 5,291.89, 7,940.13 and 2,518.54

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Solution

The fourth proportional to 5,291.89, 7,940.13 and 2,518.54 is: 3,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,291.89 : 7,940.13 = 2,518.54 : x
  2. Step 2: Convert to fraction form
    5,291.89/7,940.13 = 2,518.54/x
  3. Step 3: Cross multiply
    5,291.89x = 7,940.13 × 2,518.54
  4. Step 4: Simplify right side
    5,291.89x = 19,997,535.01
  5. Step 5: Solve for x
    x = 19,997,535.01/5,291.89
  6. Step 6: Final answer
    x = 3,778.90

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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.