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Finding the Fourth Proportional to 2,745.39, 3,788.63 and 1,503.39

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Solution

The fourth proportional to 2,745.39, 3,788.63 and 1,503.39 is: 2,074.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.39 : 3,788.63 = 1,503.39 : x
  2. Step 2: Convert to fraction form
    2,745.39/3,788.63 = 1,503.39/x
  3. Step 3: Cross multiply
    2,745.39x = 3,788.63 × 1,503.39
  4. Step 4: Simplify right side
    2,745.39x = 5,695,780.94
  5. Step 5: Solve for x
    x = 5,695,780.94/2,745.39
  6. Step 6: Final answer
    x = 2,074.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.