Home / 5,311.37-7,336.78-4,329.05

Finding the Fourth Proportional to 5,311.37, 7,336.78 and 4,329.05

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Solution

The fourth proportional to 5,311.37, 7,336.78 and 4,329.05 is: 5,979.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311.37 : 7,336.78 = 4,329.05 : x
  2. Step 2: Convert to fraction form
    5,311.37/7,336.78 = 4,329.05/x
  3. Step 3: Cross multiply
    5,311.37x = 7,336.78 × 4,329.05
  4. Step 4: Simplify right side
    5,311.37x = 31,761,239.95
  5. Step 5: Solve for x
    x = 31,761,239.95/5,311.37
  6. Step 6: Final answer
    x = 5,979.86

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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.