Home / 2,135.97-3,218.54-1,900.26

Finding the Fourth Proportional to 2,135.97, 3,218.54 and 1,900.26

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Solution

The fourth proportional to 2,135.97, 3,218.54 and 1,900.26 is: 2,863.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.97 : 3,218.54 = 1,900.26 : x
  2. Step 2: Convert to fraction form
    2,135.97/3,218.54 = 1,900.26/x
  3. Step 3: Cross multiply
    2,135.97x = 3,218.54 × 1,900.26
  4. Step 4: Simplify right side
    2,135.97x = 6,116,053.32
  5. Step 5: Solve for x
    x = 6,116,053.32/2,135.97
  6. Step 6: Final answer
    x = 2,863.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.