Home / 5,917.19-8,166.42-3,928.23

Finding the Fourth Proportional to 5,917.19, 8,166.42 and 3,928.23

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Solution

The fourth proportional to 5,917.19, 8,166.42 and 3,928.23 is: 5,421.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,917.19 : 8,166.42 = 3,928.23 : x
  2. Step 2: Convert to fraction form
    5,917.19/8,166.42 = 3,928.23/x
  3. Step 3: Cross multiply
    5,917.19x = 8,166.42 × 3,928.23
  4. Step 4: Simplify right side
    5,917.19x = 32,079,576.04
  5. Step 5: Solve for x
    x = 32,079,576.04/5,917.19
  6. Step 6: Final answer
    x = 5,421.43

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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.