Home / 5,422.70-8,135.50-2,302.89

Finding the Fourth Proportional to 5,422.70, 8,135.50 and 2,302.89

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Solution

The fourth proportional to 5,422.70, 8,135.50 and 2,302.89 is: 3,454.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.70 : 8,135.50 = 2,302.89 : x
  2. Step 2: Convert to fraction form
    5,422.70/8,135.50 = 2,302.89/x
  3. Step 3: Cross multiply
    5,422.70x = 8,135.50 × 2,302.89
  4. Step 4: Simplify right side
    5,422.70x = 18,735,161.60
  5. Step 5: Solve for x
    x = 18,735,161.60/5,422.70
  6. Step 6: Final answer
    x = 3,454.95

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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.