Home / 7,168.20-9,890.39-4,182.33

Finding the Fourth Proportional to 7,168.20, 9,890.39 and 4,182.33

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Solution

The fourth proportional to 7,168.20, 9,890.39 and 4,182.33 is: 5,770.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.20 : 9,890.39 = 4,182.33 : x
  2. Step 2: Convert to fraction form
    7,168.20/9,890.39 = 4,182.33/x
  3. Step 3: Cross multiply
    7,168.20x = 9,890.39 × 4,182.33
  4. Step 4: Simplify right side
    7,168.20x = 41,364,853.90
  5. Step 5: Solve for x
    x = 41,364,853.90/7,168.20
  6. Step 6: Final answer
    x = 5,770.61

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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.