Home / 3,840.26-5,760.40-1,104.26

Finding the Fourth Proportional to 3,840.26, 5,760.40 and 1,104.26

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Solution

The fourth proportional to 3,840.26, 5,760.40 and 1,104.26 is: 1,656.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.26 : 5,760.40 = 1,104.26 : x
  2. Step 2: Convert to fraction form
    3,840.26/5,760.40 = 1,104.26/x
  3. Step 3: Cross multiply
    3,840.26x = 5,760.40 × 1,104.26
  4. Step 4: Simplify right side
    3,840.26x = 6,360,979.30
  5. Step 5: Solve for x
    x = 6,360,979.30/3,840.26
  6. Step 6: Final answer
    x = 1,656.39

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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.