Home / 3,748.89-5,622.36-1,408.80

Finding the Fourth Proportional to 3,748.89, 5,622.36 and 1,408.80

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Solution

The fourth proportional to 3,748.89, 5,622.36 and 1,408.80 is: 2,112.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,748.89 : 5,622.36 = 1,408.80 : x
  2. Step 2: Convert to fraction form
    3,748.89/5,622.36 = 1,408.80/x
  3. Step 3: Cross multiply
    3,748.89x = 5,622.36 × 1,408.80
  4. Step 4: Simplify right side
    3,748.89x = 7,920,780.77
  5. Step 5: Solve for x
    x = 7,920,780.77/3,748.89
  6. Step 6: Final answer
    x = 2,112.83

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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.