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Finding the Fourth Proportional to 3,509.56, 5,251.38 and 2,887.48

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Solution

The fourth proportional to 3,509.56, 5,251.38 and 2,887.48 is: 4,320.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.56 : 5,251.38 = 2,887.48 : x
  2. Step 2: Convert to fraction form
    3,509.56/5,251.38 = 2,887.48/x
  3. Step 3: Cross multiply
    3,509.56x = 5,251.38 × 2,887.48
  4. Step 4: Simplify right side
    3,509.56x = 15,163,254.72
  5. Step 5: Solve for x
    x = 15,163,254.72/3,509.56
  6. Step 6: Final answer
    x = 4,320.56

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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.