Home / 3,745.16-5,615.92-1,405.52

Finding the Fourth Proportional to 3,745.16, 5,615.92 and 1,405.52

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Solution

The fourth proportional to 3,745.16, 5,615.92 and 1,405.52 is: 2,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.16 : 5,615.92 = 1,405.52 : x
  2. Step 2: Convert to fraction form
    3,745.16/5,615.92 = 1,405.52/x
  3. Step 3: Cross multiply
    3,745.16x = 5,615.92 × 1,405.52
  4. Step 4: Simplify right side
    3,745.16x = 7,893,287.88
  5. Step 5: Solve for x
    x = 7,893,287.88/3,745.16
  6. Step 6: Final answer
    x = 2,107.60

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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.