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Finding the Fourth Proportional to 3,052.84, 4,579.56 and 861.59

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Solution

The fourth proportional to 3,052.84, 4,579.56 and 861.59 is: 1,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,052.84 : 4,579.56 = 861.59 : x
  2. Step 2: Convert to fraction form
    3,052.84/4,579.56 = 861.59/x
  3. Step 3: Cross multiply
    3,052.84x = 4,579.56 × 861.59
  4. Step 4: Simplify right side
    3,052.84x = 3,945,678.05
  5. Step 5: Solve for x
    x = 3,945,678.05/3,052.84
  6. Step 6: Final answer
    x = 1,292.46

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