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Finding the Fourth Proportional to 1,890.67, 2,835.97 and 503.96

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Solution

The fourth proportional to 1,890.67, 2,835.97 and 503.96 is: 755.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.67 : 2,835.97 = 503.96 : x
  2. Step 2: Convert to fraction form
    1,890.67/2,835.97 = 503.96/x
  3. Step 3: Cross multiply
    1,890.67x = 2,835.97 × 503.96
  4. Step 4: Simplify right side
    1,890.67x = 1,429,221.27
  5. Step 5: Solve for x
    x = 1,429,221.27/1,890.67
  6. Step 6: Final answer
    x = 755.93

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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.