Home / 4,269.73-6,404.36-1,638.50

Finding the Fourth Proportional to 4,269.73, 6,404.36 and 1,638.50

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Solution

The fourth proportional to 4,269.73, 6,404.36 and 1,638.50 is: 2,457.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,269.73 : 6,404.36 = 1,638.50 : x
  2. Step 2: Convert to fraction form
    4,269.73/6,404.36 = 1,638.50/x
  3. Step 3: Cross multiply
    4,269.73x = 6,404.36 × 1,638.50
  4. Step 4: Simplify right side
    4,269.73x = 10,493,515.93
  5. Step 5: Solve for x
    x = 10,493,515.93/4,269.73
  6. Step 6: Final answer
    x = 2,457.65

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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.