Home / 5,138.60-7,709.75-2,673.37

Finding the Fourth Proportional to 5,138.60, 7,709.75 and 2,673.37

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Solution

The fourth proportional to 5,138.60, 7,709.75 and 2,673.37 is: 4,011.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138.60 : 7,709.75 = 2,673.37 : x
  2. Step 2: Convert to fraction form
    5,138.60/7,709.75 = 2,673.37/x
  3. Step 3: Cross multiply
    5,138.60x = 7,709.75 × 2,673.37
  4. Step 4: Simplify right side
    5,138.60x = 20,610,962.44
  5. Step 5: Solve for x
    x = 20,610,962.44/5,138.60
  6. Step 6: Final answer
    x = 4,011.01

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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.