Home / 4,739.34-7,101.72-2,789.40

Finding the Fourth Proportional to 4,739.34, 7,101.72 and 2,789.40

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Solution

The fourth proportional to 4,739.34, 7,101.72 and 2,789.40 is: 4,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,739.34 : 7,101.72 = 2,789.40 : x
  2. Step 2: Convert to fraction form
    4,739.34/7,101.72 = 2,789.40/x
  3. Step 3: Cross multiply
    4,739.34x = 7,101.72 × 2,789.40
  4. Step 4: Simplify right side
    4,739.34x = 19,809,537.77
  5. Step 5: Solve for x
    x = 19,809,537.77/4,739.34
  6. Step 6: Final answer
    x = 4,179.81

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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.