Home / 3,745.63-5,616.46-1,147.87

Finding the Fourth Proportional to 3,745.63, 5,616.46 and 1,147.87

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Solution

The fourth proportional to 3,745.63, 5,616.46 and 1,147.87 is: 1,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.63 : 5,616.46 = 1,147.87 : x
  2. Step 2: Convert to fraction form
    3,745.63/5,616.46 = 1,147.87/x
  3. Step 3: Cross multiply
    3,745.63x = 5,616.46 × 1,147.87
  4. Step 4: Simplify right side
    3,745.63x = 6,446,965.94
  5. Step 5: Solve for x
    x = 6,446,965.94/3,745.63
  6. Step 6: Final answer
    x = 1,721.20

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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.