Home / 5,274.86-7,912.73-1,379.25

Finding the Fourth Proportional to 5,274.86, 7,912.73 and 1,379.25

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Solution

The fourth proportional to 5,274.86, 7,912.73 and 1,379.25 is: 2,068.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,274.86 : 7,912.73 = 1,379.25 : x
  2. Step 2: Convert to fraction form
    5,274.86/7,912.73 = 1,379.25/x
  3. Step 3: Cross multiply
    5,274.86x = 7,912.73 × 1,379.25
  4. Step 4: Simplify right side
    5,274.86x = 10,913,625.96
  5. Step 5: Solve for x
    x = 10,913,625.96/5,274.86
  6. Step 6: Final answer
    x = 2,068.99

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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.