Home / 5,745.23-7,931.44-3,866.69

Finding the Fourth Proportional to 5,745.23, 7,931.44 and 3,866.69

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Solution

The fourth proportional to 5,745.23, 7,931.44 and 3,866.69 is: 5,338.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,745.23 : 7,931.44 = 3,866.69 : x
  2. Step 2: Convert to fraction form
    5,745.23/7,931.44 = 3,866.69/x
  3. Step 3: Cross multiply
    5,745.23x = 7,931.44 × 3,866.69
  4. Step 4: Simplify right side
    5,745.23x = 30,668,419.73
  5. Step 5: Solve for x
    x = 30,668,419.73/5,745.23
  6. Step 6: Final answer
    x = 5,338.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.