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Finding the Fourth Proportional to 2,708.84, 3,738.44 and 1,529.89

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Solution

The fourth proportional to 2,708.84, 3,738.44 and 1,529.89 is: 2,111.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,708.84 : 3,738.44 = 1,529.89 : x
  2. Step 2: Convert to fraction form
    2,708.84/3,738.44 = 1,529.89/x
  3. Step 3: Cross multiply
    2,708.84x = 3,738.44 × 1,529.89
  4. Step 4: Simplify right side
    2,708.84x = 5,719,396.45
  5. Step 5: Solve for x
    x = 5,719,396.45/2,708.84
  6. Step 6: Final answer
    x = 2,111.38

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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.