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Finding the Fourth Proportional to 2,738.37, 4,107.93 and 888.89

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Solution

The fourth proportional to 2,738.37, 4,107.93 and 888.89 is: 1,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.37 : 4,107.93 = 888.89 : x
  2. Step 2: Convert to fraction form
    2,738.37/4,107.93 = 888.89/x
  3. Step 3: Cross multiply
    2,738.37x = 4,107.93 × 888.89
  4. Step 4: Simplify right side
    2,738.37x = 3,651,472.91
  5. Step 5: Solve for x
    x = 3,651,472.91/2,738.37
  6. Step 6: Final answer
    x = 1,333.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.