Home / 3,161.16-4,736.79-1,928.25

Finding the Fourth Proportional to 3,161.16, 4,736.79 and 1,928.25

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Solution

The fourth proportional to 3,161.16, 4,736.79 and 1,928.25 is: 2,889.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.16 : 4,736.79 = 1,928.25 : x
  2. Step 2: Convert to fraction form
    3,161.16/4,736.79 = 1,928.25/x
  3. Step 3: Cross multiply
    3,161.16x = 4,736.79 × 1,928.25
  4. Step 4: Simplify right side
    3,161.16x = 9,133,715.32
  5. Step 5: Solve for x
    x = 9,133,715.32/3,161.16
  6. Step 6: Final answer
    x = 2,889.36

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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.