Home / 3,882.36-5,356.62-2,485.92

Finding the Fourth Proportional to 3,882.36, 5,356.62 and 2,485.92

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Solution

The fourth proportional to 3,882.36, 5,356.62 and 2,485.92 is: 3,429.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,882.36 : 5,356.62 = 2,485.92 : x
  2. Step 2: Convert to fraction form
    3,882.36/5,356.62 = 2,485.92/x
  3. Step 3: Cross multiply
    3,882.36x = 5,356.62 × 2,485.92
  4. Step 4: Simplify right side
    3,882.36x = 13,316,128.79
  5. Step 5: Solve for x
    x = 13,316,128.79/3,882.36
  6. Step 6: Final answer
    x = 3,429.91

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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.