Home / 5,391.18-8,087.04-2,103.12

Finding the Fourth Proportional to 5,391.18, 8,087.04 and 2,103.12

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Solution

The fourth proportional to 5,391.18, 8,087.04 and 2,103.12 is: 3,154.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.18 : 8,087.04 = 2,103.12 : x
  2. Step 2: Convert to fraction form
    5,391.18/8,087.04 = 2,103.12/x
  3. Step 3: Cross multiply
    5,391.18x = 8,087.04 × 2,103.12
  4. Step 4: Simplify right side
    5,391.18x = 17,008,015.56
  5. Step 5: Solve for x
    x = 17,008,015.56/5,391.18
  6. Step 6: Final answer
    x = 3,154.79

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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.