Home / 5,645.21-7,790.51-3,286.49

Finding the Fourth Proportional to 5,645.21, 7,790.51 and 3,286.49

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Solution

The fourth proportional to 5,645.21, 7,790.51 and 3,286.49 is: 4,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.21 : 7,790.51 = 3,286.49 : x
  2. Step 2: Convert to fraction form
    5,645.21/7,790.51 = 3,286.49/x
  3. Step 3: Cross multiply
    5,645.21x = 7,790.51 × 3,286.49
  4. Step 4: Simplify right side
    5,645.21x = 25,603,402.47
  5. Step 5: Solve for x
    x = 25,603,402.47/5,645.21
  6. Step 6: Final answer
    x = 4,535.42

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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.