Home / 3,490.46-4,816.70-1,918.54

Finding the Fourth Proportional to 3,490.46, 4,816.70 and 1,918.54

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Solution

The fourth proportional to 3,490.46, 4,816.70 and 1,918.54 is: 2,647.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.46 : 4,816.70 = 1,918.54 : x
  2. Step 2: Convert to fraction form
    3,490.46/4,816.70 = 1,918.54/x
  3. Step 3: Cross multiply
    3,490.46x = 4,816.70 × 1,918.54
  4. Step 4: Simplify right side
    3,490.46x = 9,241,007.53
  5. Step 5: Solve for x
    x = 9,241,007.53/3,490.46
  6. Step 6: Final answer
    x = 2,647.51

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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.