Home / 2,381.38-3,286.37-1,333.51

Finding the Fourth Proportional to 2,381.38, 3,286.37 and 1,333.51

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Solution

The fourth proportional to 2,381.38, 3,286.37 and 1,333.51 is: 1,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.38 : 3,286.37 = 1,333.51 : x
  2. Step 2: Convert to fraction form
    2,381.38/3,286.37 = 1,333.51/x
  3. Step 3: Cross multiply
    2,381.38x = 3,286.37 × 1,333.51
  4. Step 4: Simplify right side
    2,381.38x = 4,382,407.26
  5. Step 5: Solve for x
    x = 4,382,407.26/2,381.38
  6. Step 6: Final answer
    x = 1,840.28

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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.