Home / 5,101.79-7,040.42-3,112.02

Finding the Fourth Proportional to 5,101.79, 7,040.42 and 3,112.02

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Solution

The fourth proportional to 5,101.79, 7,040.42 and 3,112.02 is: 4,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.79 : 7,040.42 = 3,112.02 : x
  2. Step 2: Convert to fraction form
    5,101.79/7,040.42 = 3,112.02/x
  3. Step 3: Cross multiply
    5,101.79x = 7,040.42 × 3,112.02
  4. Step 4: Simplify right side
    5,101.79x = 21,909,923.96
  5. Step 5: Solve for x
    x = 21,909,923.96/5,101.79
  6. Step 6: Final answer
    x = 4,294.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.