Home / 3,857.77-5,323.72-2,089.38

Finding the Fourth Proportional to 3,857.77, 5,323.72 and 2,089.38

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Solution

The fourth proportional to 3,857.77, 5,323.72 and 2,089.38 is: 2,883.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.77 : 5,323.72 = 2,089.38 : x
  2. Step 2: Convert to fraction form
    3,857.77/5,323.72 = 2,089.38/x
  3. Step 3: Cross multiply
    3,857.77x = 5,323.72 × 2,089.38
  4. Step 4: Simplify right side
    3,857.77x = 11,123,292.75
  5. Step 5: Solve for x
    x = 11,123,292.75/3,857.77
  6. Step 6: Final answer
    x = 2,883.35

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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.