Home / 4,120.73-5,683.85-2,705.69

Finding the Fourth Proportional to 4,120.73, 5,683.85 and 2,705.69

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Solution

The fourth proportional to 4,120.73, 5,683.85 and 2,705.69 is: 3,732.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.73 : 5,683.85 = 2,705.69 : x
  2. Step 2: Convert to fraction form
    4,120.73/5,683.85 = 2,705.69/x
  3. Step 3: Cross multiply
    4,120.73x = 5,683.85 × 2,705.69
  4. Step 4: Simplify right side
    4,120.73x = 15,378,694.16
  5. Step 5: Solve for x
    x = 15,378,694.16/4,120.73
  6. Step 6: Final answer
    x = 3,732.04

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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.