Home / 3,543.21-5,315.63-1,694.79

Finding the Fourth Proportional to 3,543.21, 5,315.63 and 1,694.79

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Solution

The fourth proportional to 3,543.21, 5,315.63 and 1,694.79 is: 2,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,543.21 : 5,315.63 = 1,694.79 : x
  2. Step 2: Convert to fraction form
    3,543.21/5,315.63 = 1,694.79/x
  3. Step 3: Cross multiply
    3,543.21x = 5,315.63 × 1,694.79
  4. Step 4: Simplify right side
    3,543.21x = 9,008,868.09
  5. Step 5: Solve for x
    x = 9,008,868.09/3,543.21
  6. Step 6: Final answer
    x = 2,542.57

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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.