Home / 2,911.31-4,017.94-1,716.56

Finding the Fourth Proportional to 2,911.31, 4,017.94 and 1,716.56

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Solution

The fourth proportional to 2,911.31, 4,017.94 and 1,716.56 is: 2,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.31 : 4,017.94 = 1,716.56 : x
  2. Step 2: Convert to fraction form
    2,911.31/4,017.94 = 1,716.56/x
  3. Step 3: Cross multiply
    2,911.31x = 4,017.94 × 1,716.56
  4. Step 4: Simplify right side
    2,911.31x = 6,897,020.36
  5. Step 5: Solve for x
    x = 6,897,020.36/2,911.31
  6. Step 6: Final answer
    x = 2,369.05

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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.