Home / 3,173.52-4,378.93-1,993.75

Finding the Fourth Proportional to 3,173.52, 4,378.93 and 1,993.75

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Solution

The fourth proportional to 3,173.52, 4,378.93 and 1,993.75 is: 2,751.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.52 : 4,378.93 = 1,993.75 : x
  2. Step 2: Convert to fraction form
    3,173.52/4,378.93 = 1,993.75/x
  3. Step 3: Cross multiply
    3,173.52x = 4,378.93 × 1,993.75
  4. Step 4: Simplify right side
    3,173.52x = 8,730,491.69
  5. Step 5: Solve for x
    x = 8,730,491.69/3,173.52
  6. Step 6: Final answer
    x = 2,751.05

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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.