Home / 3,253.12-4,489.36-1,993.68

Finding the Fourth Proportional to 3,253.12, 4,489.36 and 1,993.68

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Solution

The fourth proportional to 3,253.12, 4,489.36 and 1,993.68 is: 2,751.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,253.12 : 4,489.36 = 1,993.68 : x
  2. Step 2: Convert to fraction form
    3,253.12/4,489.36 = 1,993.68/x
  3. Step 3: Cross multiply
    3,253.12x = 4,489.36 × 1,993.68
  4. Step 4: Simplify right side
    3,253.12x = 8,950,347.24
  5. Step 5: Solve for x
    x = 8,950,347.24/3,253.12
  6. Step 6: Final answer
    x = 2,751.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.