Home / 3,544.68-5,313.55-1,321.89

Finding the Fourth Proportional to 3,544.68, 5,313.55 and 1,321.89

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Solution

The fourth proportional to 3,544.68, 5,313.55 and 1,321.89 is: 1,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,544.68 : 5,313.55 = 1,321.89 : x
  2. Step 2: Convert to fraction form
    3,544.68/5,313.55 = 1,321.89/x
  3. Step 3: Cross multiply
    3,544.68x = 5,313.55 × 1,321.89
  4. Step 4: Simplify right side
    3,544.68x = 7,023,928.61
  5. Step 5: Solve for x
    x = 7,023,928.61/3,544.68
  6. Step 6: Final answer
    x = 1,981.54

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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.