Home / 3,790.86-5,687.12-1,158.59

Finding the Fourth Proportional to 3,790.86, 5,687.12 and 1,158.59

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Solution

The fourth proportional to 3,790.86, 5,687.12 and 1,158.59 is: 1,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,790.86 : 5,687.12 = 1,158.59 : x
  2. Step 2: Convert to fraction form
    3,790.86/5,687.12 = 1,158.59/x
  3. Step 3: Cross multiply
    3,790.86x = 5,687.12 × 1,158.59
  4. Step 4: Simplify right side
    3,790.86x = 6,589,040.36
  5. Step 5: Solve for x
    x = 6,589,040.36/3,790.86
  6. Step 6: Final answer
    x = 1,738.14

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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.