Home / 4,487.67-6,730.34-1,890.09

Finding the Fourth Proportional to 4,487.67, 6,730.34 and 1,890.09

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Solution

The fourth proportional to 4,487.67, 6,730.34 and 1,890.09 is: 2,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,487.67 : 6,730.34 = 1,890.09 : x
  2. Step 2: Convert to fraction form
    4,487.67/6,730.34 = 1,890.09/x
  3. Step 3: Cross multiply
    4,487.67x = 6,730.34 × 1,890.09
  4. Step 4: Simplify right side
    4,487.67x = 12,720,938.88
  5. Step 5: Solve for x
    x = 12,720,938.88/4,487.67
  6. Step 6: Final answer
    x = 2,834.64

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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.