Home / 3,683.64-5,083.11-2,111.70

Finding the Fourth Proportional to 3,683.64, 5,083.11 and 2,111.70

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Solution

The fourth proportional to 3,683.64, 5,083.11 and 2,111.70 is: 2,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,683.64 : 5,083.11 = 2,111.70 : x
  2. Step 2: Convert to fraction form
    3,683.64/5,083.11 = 2,111.70/x
  3. Step 3: Cross multiply
    3,683.64x = 5,083.11 × 2,111.70
  4. Step 4: Simplify right side
    3,683.64x = 10,734,003.39
  5. Step 5: Solve for x
    x = 10,734,003.39/3,683.64
  6. Step 6: Final answer
    x = 2,913.97

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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.