Home / 3,746.54-5,170.39-2,153.70

Finding the Fourth Proportional to 3,746.54, 5,170.39 and 2,153.70

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Solution

The fourth proportional to 3,746.54, 5,170.39 and 2,153.70 is: 2,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.54 : 5,170.39 = 2,153.70 : x
  2. Step 2: Convert to fraction form
    3,746.54/5,170.39 = 2,153.70/x
  3. Step 3: Cross multiply
    3,746.54x = 5,170.39 × 2,153.70
  4. Step 4: Simplify right side
    3,746.54x = 11,135,468.94
  5. Step 5: Solve for x
    x = 11,135,468.94/3,746.54
  6. Step 6: Final answer
    x = 2,972.20

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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.