Home / 3,914.16-5,401.65-2,145.93

Finding the Fourth Proportional to 3,914.16, 5,401.65 and 2,145.93

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Solution

The fourth proportional to 3,914.16, 5,401.65 and 2,145.93 is: 2,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.16 : 5,401.65 = 2,145.93 : x
  2. Step 2: Convert to fraction form
    3,914.16/5,401.65 = 2,145.93/x
  3. Step 3: Cross multiply
    3,914.16x = 5,401.65 × 2,145.93
  4. Step 4: Simplify right side
    3,914.16x = 11,591,562.78
  5. Step 5: Solve for x
    x = 11,591,562.78/3,914.16
  6. Step 6: Final answer
    x = 2,961.44

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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.