Home / 1,721.70-2,583.18-1,663.38

Finding the Fourth Proportional to 1,721.70, 2,583.18 and 1,663.38

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Solution

The fourth proportional to 1,721.70, 2,583.18 and 1,663.38 is: 2,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.70 : 2,583.18 = 1,663.38 : x
  2. Step 2: Convert to fraction form
    1,721.70/2,583.18 = 1,663.38/x
  3. Step 3: Cross multiply
    1,721.70x = 2,583.18 × 1,663.38
  4. Step 4: Simplify right side
    1,721.70x = 4,296,809.95
  5. Step 5: Solve for x
    x = 4,296,809.95/1,721.70
  6. Step 6: Final answer
    x = 2,495.68

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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.