Home / 5,111.43-7,662.99-2,646.96

Finding the Fourth Proportional to 5,111.43, 7,662.99 and 2,646.96

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Solution

The fourth proportional to 5,111.43, 7,662.99 and 2,646.96 is: 3,968.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,111.43 : 7,662.99 = 2,646.96 : x
  2. Step 2: Convert to fraction form
    5,111.43/7,662.99 = 2,646.96/x
  3. Step 3: Cross multiply
    5,111.43x = 7,662.99 × 2,646.96
  4. Step 4: Simplify right side
    5,111.43x = 20,283,628.01
  5. Step 5: Solve for x
    x = 20,283,628.01/5,111.43
  6. Step 6: Final answer
    x = 3,968.29

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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.