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Finding the Fourth Proportional to 2,858.88, 4,285.44 and 1,125.76

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Solution

The fourth proportional to 2,858.88, 4,285.44 and 1,125.76 is: 1,687.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.88 : 4,285.44 = 1,125.76 : x
  2. Step 2: Convert to fraction form
    2,858.88/4,285.44 = 1,125.76/x
  3. Step 3: Cross multiply
    2,858.88x = 4,285.44 × 1,125.76
  4. Step 4: Simplify right side
    2,858.88x = 4,824,376.93
  5. Step 5: Solve for x
    x = 4,824,376.93/2,858.88
  6. Step 6: Final answer
    x = 1,687.51

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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.