Home / 3,727.17-5,143.46-2,155.23

Finding the Fourth Proportional to 3,727.17, 5,143.46 and 2,155.23

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Solution

The fourth proportional to 3,727.17, 5,143.46 and 2,155.23 is: 2,974.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.17 : 5,143.46 = 2,155.23 : x
  2. Step 2: Convert to fraction form
    3,727.17/5,143.46 = 2,155.23/x
  3. Step 3: Cross multiply
    3,727.17x = 5,143.46 × 2,155.23
  4. Step 4: Simplify right side
    3,727.17x = 11,085,328.52
  5. Step 5: Solve for x
    x = 11,085,328.52/3,727.17
  6. Step 6: Final answer
    x = 2,974.19

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Half scale
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Double scale
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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.