Home / 5,140.80-7,707.96-2,676.42

Finding the Fourth Proportional to 5,140.80, 7,707.96 and 2,676.42

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Solution

The fourth proportional to 5,140.80, 7,707.96 and 2,676.42 is: 4,012.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,140.80 : 7,707.96 = 2,676.42 : x
  2. Step 2: Convert to fraction form
    5,140.80/7,707.96 = 2,676.42/x
  3. Step 3: Cross multiply
    5,140.80x = 7,707.96 × 2,676.42
  4. Step 4: Simplify right side
    5,140.80x = 20,629,738.30
  5. Step 5: Solve for x
    x = 20,629,738.30/5,140.80
  6. Step 6: Final answer
    x = 4,012.94

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1.5x scale

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.