Home / 3,857.04-5,785.48-1,121.04

Finding the Fourth Proportional to 3,857.04, 5,785.48 and 1,121.04

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Solution

The fourth proportional to 3,857.04, 5,785.48 and 1,121.04 is: 1,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.04 : 5,785.48 = 1,121.04 : x
  2. Step 2: Convert to fraction form
    3,857.04/5,785.48 = 1,121.04/x
  3. Step 3: Cross multiply
    3,857.04x = 5,785.48 × 1,121.04
  4. Step 4: Simplify right side
    3,857.04x = 6,485,754.50
  5. Step 5: Solve for x
    x = 6,485,754.50/3,857.04
  6. Step 6: Final answer
    x = 1,681.54

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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.