Home / 2,381.19-3,286.23-1,333.20

Finding the Fourth Proportional to 2,381.19, 3,286.23 and 1,333.20

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Solution

The fourth proportional to 2,381.19, 3,286.23 and 1,333.20 is: 1,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.19 : 3,286.23 = 1,333.20 : x
  2. Step 2: Convert to fraction form
    2,381.19/3,286.23 = 1,333.20/x
  3. Step 3: Cross multiply
    2,381.19x = 3,286.23 × 1,333.20
  4. Step 4: Simplify right side
    2,381.19x = 4,381,201.84
  5. Step 5: Solve for x
    x = 4,381,201.84/2,381.19
  6. Step 6: Final answer
    x = 1,839.92

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Double scale
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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.