Home / 4,745.67-7,120.08-1,977.72

Finding the Fourth Proportional to 4,745.67, 7,120.08 and 1,977.72

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Solution

The fourth proportional to 4,745.67, 7,120.08 and 1,977.72 is: 2,967.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,745.67 : 7,120.08 = 1,977.72 : x
  2. Step 2: Convert to fraction form
    4,745.67/7,120.08 = 1,977.72/x
  3. Step 3: Cross multiply
    4,745.67x = 7,120.08 × 1,977.72
  4. Step 4: Simplify right side
    4,745.67x = 14,081,524.62
  5. Step 5: Solve for x
    x = 14,081,524.62/4,745.67
  6. Step 6: Final answer
    x = 2,967.24

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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.