Home / 5,161.74-7,743.72-1,603.80

Finding the Fourth Proportional to 5,161.74, 7,743.72 and 1,603.80

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Solution

The fourth proportional to 5,161.74, 7,743.72 and 1,603.80 is: 2,406.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.74 : 7,743.72 = 1,603.80 : x
  2. Step 2: Convert to fraction form
    5,161.74/7,743.72 = 1,603.80/x
  3. Step 3: Cross multiply
    5,161.74x = 7,743.72 × 1,603.80
  4. Step 4: Simplify right side
    5,161.74x = 12,419,378.14
  5. Step 5: Solve for x
    x = 12,419,378.14/5,161.74
  6. Step 6: Final answer
    x = 2,406.04

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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.