Home / 3,074.35-4,608.53-1,319.81

Finding the Fourth Proportional to 3,074.35, 4,608.53 and 1,319.81

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Solution

The fourth proportional to 3,074.35, 4,608.53 and 1,319.81 is: 1,978.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,074.35 : 4,608.53 = 1,319.81 : x
  2. Step 2: Convert to fraction form
    3,074.35/4,608.53 = 1,319.81/x
  3. Step 3: Cross multiply
    3,074.35x = 4,608.53 × 1,319.81
  4. Step 4: Simplify right side
    3,074.35x = 6,082,383.98
  5. Step 5: Solve for x
    x = 6,082,383.98/3,074.35
  6. Step 6: Final answer
    x = 1,978.43

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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.