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Finding the Fourth Proportional to 3,226.87, 4,840.30 and 918.37

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Solution

The fourth proportional to 3,226.87, 4,840.30 and 918.37 is: 1,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.87 : 4,840.30 = 918.37 : x
  2. Step 2: Convert to fraction form
    3,226.87/4,840.30 = 918.37/x
  3. Step 3: Cross multiply
    3,226.87x = 4,840.30 × 918.37
  4. Step 4: Simplify right side
    3,226.87x = 4,445,162.11
  5. Step 5: Solve for x
    x = 4,445,162.11/3,226.87
  6. Step 6: Final answer
    x = 1,377.55

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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.