Home / 3,683.76-5,083.75-2,112.16

Finding the Fourth Proportional to 3,683.76, 5,083.75 and 2,112.16

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Solution

The fourth proportional to 3,683.76, 5,083.75 and 2,112.16 is: 2,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,683.76 : 5,083.75 = 2,112.16 : x
  2. Step 2: Convert to fraction form
    3,683.76/5,083.75 = 2,112.16/x
  3. Step 3: Cross multiply
    3,683.76x = 5,083.75 × 2,112.16
  4. Step 4: Simplify right side
    3,683.76x = 10,737,680.98
  5. Step 5: Solve for x
    x = 10,737,680.98/3,683.76
  6. Step 6: Final answer
    x = 2,914.87

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1.5x scale

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.