Home / 2,619.89-3,927.45-2,391.63

Finding the Fourth Proportional to 2,619.89, 3,927.45 and 2,391.63

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Solution

The fourth proportional to 2,619.89, 3,927.45 and 2,391.63 is: 3,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.89 : 3,927.45 = 2,391.63 : x
  2. Step 2: Convert to fraction form
    2,619.89/3,927.45 = 2,391.63/x
  3. Step 3: Cross multiply
    2,619.89x = 3,927.45 × 2,391.63
  4. Step 4: Simplify right side
    2,619.89x = 9,393,007.24
  5. Step 5: Solve for x
    x = 9,393,007.24/2,619.89
  6. Step 6: Final answer
    x = 3,585.27

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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.