Home / 5,620.20-8,423.01-3,768.54

Finding the Fourth Proportional to 5,620.20, 8,423.01 and 3,768.54

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Solution

The fourth proportional to 5,620.20, 8,423.01 and 3,768.54 is: 5,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.20 : 8,423.01 = 3,768.54 : x
  2. Step 2: Convert to fraction form
    5,620.20/8,423.01 = 3,768.54/x
  3. Step 3: Cross multiply
    5,620.20x = 8,423.01 × 3,768.54
  4. Step 4: Simplify right side
    5,620.20x = 31,742,450.11
  5. Step 5: Solve for x
    x = 31,742,450.11/5,620.20
  6. Step 6: Final answer
    x = 5,647.92

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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.