Home / 5,292.78-7,939.25-2,519.75

Finding the Fourth Proportional to 5,292.78, 7,939.25 and 2,519.75

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Solution

The fourth proportional to 5,292.78, 7,939.25 and 2,519.75 is: 3,779.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,292.78 : 7,939.25 = 2,519.75 : x
  2. Step 2: Convert to fraction form
    5,292.78/7,939.25 = 2,519.75/x
  3. Step 3: Cross multiply
    5,292.78x = 7,939.25 × 2,519.75
  4. Step 4: Simplify right side
    5,292.78x = 20,004,925.19
  5. Step 5: Solve for x
    x = 20,004,925.19/5,292.78
  6. Step 6: Final answer
    x = 3,779.66

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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.