Home / 7,927.94-11,889.56-2,379.80

Finding the Fourth Proportional to 7,927.94, 11,889.56 and 2,379.80

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Solution

The fourth proportional to 7,927.94, 11,889.56 and 2,379.80 is: 3,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,927.94 : 11,889.56 = 2,379.80 : x
  2. Step 2: Convert to fraction form
    7,927.94/11,889.56 = 2,379.80/x
  3. Step 3: Cross multiply
    7,927.94x = 11,889.56 × 2,379.80
  4. Step 4: Simplify right side
    7,927.94x = 28,294,810.56
  5. Step 5: Solve for x
    x = 28,294,810.56/7,927.94
  6. Step 6: Final answer
    x = 3,569.00

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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.