Home / 5,383-8,074.44-3,190.15

Finding the Fourth Proportional to 5,383, 8,074.44 and 3,190.15

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Solution

The fourth proportional to 5,383, 8,074.44 and 3,190.15 is: 4,785.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383 : 8,074.44 = 3,190.15 : x
  2. Step 2: Convert to fraction form
    5,383/8,074.44 = 3,190.15/x
  3. Step 3: Cross multiply
    5,383x = 8,074.44 × 3,190.15
  4. Step 4: Simplify right side
    5,383x = 25,758,674.77
  5. Step 5: Solve for x
    x = 25,758,674.77/5,383
  6. Step 6: Final answer
    x = 4,785.19

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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.