Home / 3,993.55-5,511.75-3,047.56

Finding the Fourth Proportional to 3,993.55, 5,511.75 and 3,047.56

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Solution

The fourth proportional to 3,993.55, 5,511.75 and 3,047.56 is: 4,206.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.55 : 5,511.75 = 3,047.56 : x
  2. Step 2: Convert to fraction form
    3,993.55/5,511.75 = 3,047.56/x
  3. Step 3: Cross multiply
    3,993.55x = 5,511.75 × 3,047.56
  4. Step 4: Simplify right side
    3,993.55x = 16,797,388.83
  5. Step 5: Solve for x
    x = 16,797,388.83/3,993.55
  6. Step 6: Final answer
    x = 4,206.13

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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.