Home / 3,392.75-5,085.63-1,928.81

Finding the Fourth Proportional to 3,392.75, 5,085.63 and 1,928.81

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Solution

The fourth proportional to 3,392.75, 5,085.63 and 1,928.81 is: 2,891.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,392.75 : 5,085.63 = 1,928.81 : x
  2. Step 2: Convert to fraction form
    3,392.75/5,085.63 = 1,928.81/x
  3. Step 3: Cross multiply
    3,392.75x = 5,085.63 × 1,928.81
  4. Step 4: Simplify right side
    3,392.75x = 9,809,188.57
  5. Step 5: Solve for x
    x = 9,809,188.57/3,392.75
  6. Step 6: Final answer
    x = 2,891.22

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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.