Home / 5,189.99-7,786.19-1,904.63

Finding the Fourth Proportional to 5,189.99, 7,786.19 and 1,904.63

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Solution

The fourth proportional to 5,189.99, 7,786.19 and 1,904.63 is: 2,857.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.99 : 7,786.19 = 1,904.63 : x
  2. Step 2: Convert to fraction form
    5,189.99/7,786.19 = 1,904.63/x
  3. Step 3: Cross multiply
    5,189.99x = 7,786.19 × 1,904.63
  4. Step 4: Simplify right side
    5,189.99x = 14,829,776.89
  5. Step 5: Solve for x
    x = 14,829,776.89/5,189.99
  6. Step 6: Final answer
    x = 2,857.38

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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.