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Finding the Fourth Proportional to 1,722.02, 2,583.05 and 626.41

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Solution

The fourth proportional to 1,722.02, 2,583.05 and 626.41 is: 939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.02 : 2,583.05 = 626.41 : x
  2. Step 2: Convert to fraction form
    1,722.02/2,583.05 = 626.41/x
  3. Step 3: Cross multiply
    1,722.02x = 2,583.05 × 626.41
  4. Step 4: Simplify right side
    1,722.02x = 1,618,048.35
  5. Step 5: Solve for x
    x = 1,618,048.35/1,722.02
  6. Step 6: Final answer
    x = 939.62

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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.