Home / 5,195.31-7,786.77-2,999.40

Finding the Fourth Proportional to 5,195.31, 7,786.77 and 2,999.40

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Solution

The fourth proportional to 5,195.31, 7,786.77 and 2,999.40 is: 4,495.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.31 : 7,786.77 = 2,999.40 : x
  2. Step 2: Convert to fraction form
    5,195.31/7,786.77 = 2,999.40/x
  3. Step 3: Cross multiply
    5,195.31x = 7,786.77 × 2,999.40
  4. Step 4: Simplify right side
    5,195.31x = 23,355,637.94
  5. Step 5: Solve for x
    x = 23,355,637.94/5,195.31
  6. Step 6: Final answer
    x = 4,495.52

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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.