Home / 5,391.81-8,087.67-2,107.19

Finding the Fourth Proportional to 5,391.81, 8,087.67 and 2,107.19

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Solution

The fourth proportional to 5,391.81, 8,087.67 and 2,107.19 is: 3,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.81 : 8,087.67 = 2,107.19 : x
  2. Step 2: Convert to fraction form
    5,391.81/8,087.67 = 2,107.19/x
  3. Step 3: Cross multiply
    5,391.81x = 8,087.67 × 2,107.19
  4. Step 4: Simplify right side
    5,391.81x = 17,042,277.57
  5. Step 5: Solve for x
    x = 17,042,277.57/5,391.81
  6. Step 6: Final answer
    x = 3,160.77

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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.