Home / 3,745.80-5,618.70-1,282.32

Finding the Fourth Proportional to 3,745.80, 5,618.70 and 1,282.32

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Solution

The fourth proportional to 3,745.80, 5,618.70 and 1,282.32 is: 1,923.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,745.80 : 5,618.70 = 1,282.32 : x
  2. Step 2: Convert to fraction form
    3,745.80/5,618.70 = 1,282.32/x
  3. Step 3: Cross multiply
    3,745.80x = 5,618.70 × 1,282.32
  4. Step 4: Simplify right side
    3,745.80x = 7,204,971.38
  5. Step 5: Solve for x
    x = 7,204,971.38/3,745.80
  6. Step 6: Final answer
    x = 1,923.48

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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.