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Finding the Fourth Proportional to 4,813.73, 7,217.86 and 1,890.44

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Solution

The fourth proportional to 4,813.73, 7,217.86 and 1,890.44 is: 2,834.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.73 : 7,217.86 = 1,890.44 : x
  2. Step 2: Convert to fraction form
    4,813.73/7,217.86 = 1,890.44/x
  3. Step 3: Cross multiply
    4,813.73x = 7,217.86 × 1,890.44
  4. Step 4: Simplify right side
    4,813.73x = 13,644,931.26
  5. Step 5: Solve for x
    x = 13,644,931.26/4,813.73
  6. Step 6: Final answer
    x = 2,834.59

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1.5x scale

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.