Home / 3,620.60-5,431.22-1,023.54

Finding the Fourth Proportional to 3,620.60, 5,431.22 and 1,023.54

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Solution

The fourth proportional to 3,620.60, 5,431.22 and 1,023.54 is: 1,535.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,620.60 : 5,431.22 = 1,023.54 : x
  2. Step 2: Convert to fraction form
    3,620.60/5,431.22 = 1,023.54/x
  3. Step 3: Cross multiply
    3,620.60x = 5,431.22 × 1,023.54
  4. Step 4: Simplify right side
    3,620.60x = 5,559,064.55
  5. Step 5: Solve for x
    x = 5,559,064.55/3,620.60
  6. Step 6: Final answer
    x = 1,535.40

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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.