Home / 3,857.84-5,785.55-1,392.33

Finding the Fourth Proportional to 3,857.84, 5,785.55 and 1,392.33

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Solution

The fourth proportional to 3,857.84, 5,785.55 and 1,392.33 is: 2,088.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.84 : 5,785.55 = 1,392.33 : x
  2. Step 2: Convert to fraction form
    3,857.84/5,785.55 = 1,392.33/x
  3. Step 3: Cross multiply
    3,857.84x = 5,785.55 × 1,392.33
  4. Step 4: Simplify right side
    3,857.84x = 8,055,394.83
  5. Step 5: Solve for x
    x = 8,055,394.83/3,857.84
  6. Step 6: Final answer
    x = 2,088.06

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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.