Home / 5,174.81-7,763.21-2,054.20

Finding the Fourth Proportional to 5,174.81, 7,763.21 and 2,054.20

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Solution

The fourth proportional to 5,174.81, 7,763.21 and 2,054.20 is: 3,081.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.81 : 7,763.21 = 2,054.20 : x
  2. Step 2: Convert to fraction form
    5,174.81/7,763.21 = 2,054.20/x
  3. Step 3: Cross multiply
    5,174.81x = 7,763.21 × 2,054.20
  4. Step 4: Simplify right side
    5,174.81x = 15,947,185.98
  5. Step 5: Solve for x
    x = 15,947,185.98/5,174.81
  6. Step 6: Final answer
    x = 3,081.69

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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.