Home / 3,857.24-5,785.13-1,880.89

Finding the Fourth Proportional to 3,857.24, 5,785.13 and 1,880.89

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Solution

The fourth proportional to 3,857.24, 5,785.13 and 1,880.89 is: 2,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.24 : 5,785.13 = 1,880.89 : x
  2. Step 2: Convert to fraction form
    3,857.24/5,785.13 = 1,880.89/x
  3. Step 3: Cross multiply
    3,857.24x = 5,785.13 × 1,880.89
  4. Step 4: Simplify right side
    3,857.24x = 10,881,169.30
  5. Step 5: Solve for x
    x = 10,881,169.30/3,857.24
  6. Step 6: Final answer
    x = 2,820.97

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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.