Home / 3,811.74-5,717.61-1,075.74

Finding the Fourth Proportional to 3,811.74, 5,717.61 and 1,075.74

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Solution

The fourth proportional to 3,811.74, 5,717.61 and 1,075.74 is: 1,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,811.74 : 5,717.61 = 1,075.74 : x
  2. Step 2: Convert to fraction form
    3,811.74/5,717.61 = 1,075.74/x
  3. Step 3: Cross multiply
    3,811.74x = 5,717.61 × 1,075.74
  4. Step 4: Simplify right side
    3,811.74x = 6,150,661.78
  5. Step 5: Solve for x
    x = 6,150,661.78/3,811.74
  6. Step 6: Final answer
    x = 1,613.61

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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.