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Finding the Fourth Proportional to 1,635.93, 2,453.90 and 662.72

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Solution

The fourth proportional to 1,635.93, 2,453.90 and 662.72 is: 994.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,635.93 : 2,453.90 = 662.72 : x
  2. Step 2: Convert to fraction form
    1,635.93/2,453.90 = 662.72/x
  3. Step 3: Cross multiply
    1,635.93x = 2,453.90 × 662.72
  4. Step 4: Simplify right side
    1,635.93x = 1,626,239.16
  5. Step 5: Solve for x
    x = 1,626,239.16/1,635.93
  6. Step 6: Final answer
    x = 994.07

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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.