Home / 3,605.29-4,975.79-2,113.81

Finding the Fourth Proportional to 3,605.29, 4,975.79 and 2,113.81

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Solution

The fourth proportional to 3,605.29, 4,975.79 and 2,113.81 is: 2,917.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605.29 : 4,975.79 = 2,113.81 : x
  2. Step 2: Convert to fraction form
    3,605.29/4,975.79 = 2,113.81/x
  3. Step 3: Cross multiply
    3,605.29x = 4,975.79 × 2,113.81
  4. Step 4: Simplify right side
    3,605.29x = 10,517,874.66
  5. Step 5: Solve for x
    x = 10,517,874.66/3,605.29
  6. Step 6: Final answer
    x = 2,917.34

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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.