Home / 7,860.31-11,790.43-2,016.90

Finding the Fourth Proportional to 7,860.31, 11,790.43 and 2,016.90

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Solution

The fourth proportional to 7,860.31, 11,790.43 and 2,016.90 is: 3,025.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.31 : 11,790.43 = 2,016.90 : x
  2. Step 2: Convert to fraction form
    7,860.31/11,790.43 = 2,016.90/x
  3. Step 3: Cross multiply
    7,860.31x = 11,790.43 × 2,016.90
  4. Step 4: Simplify right side
    7,860.31x = 23,780,113.22
  5. Step 5: Solve for x
    x = 23,780,113.22/7,860.31
  6. Step 6: Final answer
    x = 3,025.34

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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.