Home / 5,345.21-8,017.82-3,391.49

Finding the Fourth Proportional to 5,345.21, 8,017.82 and 3,391.49

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Solution

The fourth proportional to 5,345.21, 8,017.82 and 3,391.49 is: 5,087.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.21 : 8,017.82 = 3,391.49 : x
  2. Step 2: Convert to fraction form
    5,345.21/8,017.82 = 3,391.49/x
  3. Step 3: Cross multiply
    5,345.21x = 8,017.82 × 3,391.49
  4. Step 4: Simplify right side
    5,345.21x = 27,192,299.31
  5. Step 5: Solve for x
    x = 27,192,299.31/5,345.21
  6. Step 6: Final answer
    x = 5,087.23

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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.