Home / 3,542.23-5,313.37-1,321.56

Finding the Fourth Proportional to 3,542.23, 5,313.37 and 1,321.56

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Solution

The fourth proportional to 3,542.23, 5,313.37 and 1,321.56 is: 1,982.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.23 : 5,313.37 = 1,321.56 : x
  2. Step 2: Convert to fraction form
    3,542.23/5,313.37 = 1,321.56/x
  3. Step 3: Cross multiply
    3,542.23x = 5,313.37 × 1,321.56
  4. Step 4: Simplify right side
    3,542.23x = 7,021,930.65
  5. Step 5: Solve for x
    x = 7,021,930.65/3,542.23
  6. Step 6: Final answer
    x = 1,982.35

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1.5x scale

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.