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Finding the Fourth Proportional to 2,370.89, 3,555.54 and 789.25

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Solution

The fourth proportional to 2,370.89, 3,555.54 and 789.25 is: 1,183.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,370.89 : 3,555.54 = 789.25 : x
  2. Step 2: Convert to fraction form
    2,370.89/3,555.54 = 789.25/x
  3. Step 3: Cross multiply
    2,370.89x = 3,555.54 × 789.25
  4. Step 4: Simplify right side
    2,370.89x = 2,806,209.95
  5. Step 5: Solve for x
    x = 2,806,209.95/2,370.89
  6. Step 6: Final answer
    x = 1,183.61

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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.