Home / 3,542.24-5,313.36-945.20

Finding the Fourth Proportional to 3,542.24, 5,313.36 and 945.20

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Solution

The fourth proportional to 3,542.24, 5,313.36 and 945.20 is: 1,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,542.24 : 5,313.36 = 945.20 : x
  2. Step 2: Convert to fraction form
    3,542.24/5,313.36 = 945.20/x
  3. Step 3: Cross multiply
    3,542.24x = 5,313.36 × 945.20
  4. Step 4: Simplify right side
    3,542.24x = 5,022,187.87
  5. Step 5: Solve for x
    x = 5,022,187.87/3,542.24
  6. Step 6: Final answer
    x = 1,417.80

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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.