Home / 3,812.93-5,717.28-2,146.38

Finding the Fourth Proportional to 3,812.93, 5,717.28 and 2,146.38

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Solution

The fourth proportional to 3,812.93, 5,717.28 and 2,146.38 is: 3,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812.93 : 5,717.28 = 2,146.38 : x
  2. Step 2: Convert to fraction form
    3,812.93/5,717.28 = 2,146.38/x
  3. Step 3: Cross multiply
    3,812.93x = 5,717.28 × 2,146.38
  4. Step 4: Simplify right side
    3,812.93x = 12,271,455.45
  5. Step 5: Solve for x
    x = 12,271,455.45/3,812.93
  6. Step 6: Final answer
    x = 3,218.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.