Home / 1,722.70-2,583.87-1,621.18

Finding the Fourth Proportional to 1,722.70, 2,583.87 and 1,621.18

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Solution

The fourth proportional to 1,722.70, 2,583.87 and 1,621.18 is: 2,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.70 : 2,583.87 = 1,621.18 : x
  2. Step 2: Convert to fraction form
    1,722.70/2,583.87 = 1,621.18/x
  3. Step 3: Cross multiply
    1,722.70x = 2,583.87 × 1,621.18
  4. Step 4: Simplify right side
    1,722.70x = 4,188,918.37
  5. Step 5: Solve for x
    x = 4,188,918.37/1,722.70
  6. Step 6: Final answer
    x = 2,431.60

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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.