Home / 2,381.28-3,285.41-1,333.14

Finding the Fourth Proportional to 2,381.28, 3,285.41 and 1,333.14

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Solution

The fourth proportional to 2,381.28, 3,285.41 and 1,333.14 is: 1,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.28 : 3,285.41 = 1,333.14 : x
  2. Step 2: Convert to fraction form
    2,381.28/3,285.41 = 1,333.14/x
  3. Step 3: Cross multiply
    2,381.28x = 3,285.41 × 1,333.14
  4. Step 4: Simplify right side
    2,381.28x = 4,379,904.82
  5. Step 5: Solve for x
    x = 4,379,904.82/2,381.28
  6. Step 6: Final answer
    x = 1,839.31

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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.