Home / 3,840.26-5,758.92-1,242.50

Finding the Fourth Proportional to 3,840.26, 5,758.92 and 1,242.50

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Solution

The fourth proportional to 3,840.26, 5,758.92 and 1,242.50 is: 1,863.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.26 : 5,758.92 = 1,242.50 : x
  2. Step 2: Convert to fraction form
    3,840.26/5,758.92 = 1,242.50/x
  3. Step 3: Cross multiply
    3,840.26x = 5,758.92 × 1,242.50
  4. Step 4: Simplify right side
    3,840.26x = 7,155,458.10
  5. Step 5: Solve for x
    x = 7,155,458.10/3,840.26
  6. Step 6: Final answer
    x = 1,863.27

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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.