Home / 1,722.54-2,583.80-489.96

Finding the Fourth Proportional to 1,722.54, 2,583.80 and 489.96

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Solution

The fourth proportional to 1,722.54, 2,583.80 and 489.96 is: 734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.54 : 2,583.80 = 489.96 : x
  2. Step 2: Convert to fraction form
    1,722.54/2,583.80 = 489.96/x
  3. Step 3: Cross multiply
    1,722.54x = 2,583.80 × 489.96
  4. Step 4: Simplify right side
    1,722.54x = 1,265,958.65
  5. Step 5: Solve for x
    x = 1,265,958.65/1,722.54
  6. Step 6: Final answer
    x = 734.94

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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.