Home / 4,918.62-7,378.02-1,631.73

Finding the Fourth Proportional to 4,918.62, 7,378.02 and 1,631.73

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Solution

The fourth proportional to 4,918.62, 7,378.02 and 1,631.73 is: 2,447.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.62 : 7,378.02 = 1,631.73 : x
  2. Step 2: Convert to fraction form
    4,918.62/7,378.02 = 1,631.73/x
  3. Step 3: Cross multiply
    4,918.62x = 7,378.02 × 1,631.73
  4. Step 4: Simplify right side
    4,918.62x = 12,038,936.57
  5. Step 5: Solve for x
    x = 12,038,936.57/4,918.62
  6. Step 6: Final answer
    x = 2,447.62

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Why These Related Problems?

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