Home / 3,091.49-4,638.37-1,448.57

Finding the Fourth Proportional to 3,091.49, 4,638.37 and 1,448.57

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Solution

The fourth proportional to 3,091.49, 4,638.37 and 1,448.57 is: 2,173.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.49 : 4,638.37 = 1,448.57 : x
  2. Step 2: Convert to fraction form
    3,091.49/4,638.37 = 1,448.57/x
  3. Step 3: Cross multiply
    3,091.49x = 4,638.37 × 1,448.57
  4. Step 4: Simplify right side
    3,091.49x = 6,718,976.82
  5. Step 5: Solve for x
    x = 6,718,976.82/3,091.49
  6. Step 6: Final answer
    x = 2,173.38

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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.