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Finding the Fourth Proportional to 1,633.05, 2,450.94 and 853.93

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Solution

The fourth proportional to 1,633.05, 2,450.94 and 853.93 is: 1,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,633.05 : 2,450.94 = 853.93 : x
  2. Step 2: Convert to fraction form
    1,633.05/2,450.94 = 853.93/x
  3. Step 3: Cross multiply
    1,633.05x = 2,450.94 × 853.93
  4. Step 4: Simplify right side
    1,633.05x = 2,092,931.19
  5. Step 5: Solve for x
    x = 2,092,931.19/1,633.05
  6. Step 6: Final answer
    x = 1,281.61

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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.