Home / 2,381.25-3,286.13-1,333.34

Finding the Fourth Proportional to 2,381.25, 3,286.13 and 1,333.34

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Solution

The fourth proportional to 2,381.25, 3,286.13 and 1,333.34 is: 1,840.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.25 : 3,286.13 = 1,333.34 : x
  2. Step 2: Convert to fraction form
    2,381.25/3,286.13 = 1,333.34/x
  3. Step 3: Cross multiply
    2,381.25x = 3,286.13 × 1,333.34
  4. Step 4: Simplify right side
    2,381.25x = 4,381,528.57
  5. Step 5: Solve for x
    x = 4,381,528.57/2,381.25
  6. Step 6: Final answer
    x = 1,840.01

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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.