Home / 5,111.45-7,665.62-1,823.79

Finding the Fourth Proportional to 5,111.45, 7,665.62 and 1,823.79

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Solution

The fourth proportional to 5,111.45, 7,665.62 and 1,823.79 is: 2,735.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.45 : 7,665.62 = 1,823.79 : x
  2. Step 2: Convert to fraction form
    5,111.45/7,665.62 = 1,823.79/x
  3. Step 3: Cross multiply
    5,111.45x = 7,665.62 × 1,823.79
  4. Step 4: Simplify right side
    5,111.45x = 13,980,471.98
  5. Step 5: Solve for x
    x = 13,980,471.98/5,111.45
  6. Step 6: Final answer
    x = 2,735.13

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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.