Home / 5,127.99-7,684.55-2,786.01

Finding the Fourth Proportional to 5,127.99, 7,684.55 and 2,786.01

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Solution

The fourth proportional to 5,127.99, 7,684.55 and 2,786.01 is: 4,174.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.99 : 7,684.55 = 2,786.01 : x
  2. Step 2: Convert to fraction form
    5,127.99/7,684.55 = 2,786.01/x
  3. Step 3: Cross multiply
    5,127.99x = 7,684.55 × 2,786.01
  4. Step 4: Simplify right side
    5,127.99x = 21,409,219.22
  5. Step 5: Solve for x
    x = 21,409,219.22/5,127.99
  6. Step 6: Final answer
    x = 4,174.97

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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.