Home / 3,561.21-5,342.36-1,095.80

Finding the Fourth Proportional to 3,561.21, 5,342.36 and 1,095.80

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Solution

The fourth proportional to 3,561.21, 5,342.36 and 1,095.80 is: 1,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561.21 : 5,342.36 = 1,095.80 : x
  2. Step 2: Convert to fraction form
    3,561.21/5,342.36 = 1,095.80/x
  3. Step 3: Cross multiply
    3,561.21x = 5,342.36 × 1,095.80
  4. Step 4: Simplify right side
    3,561.21x = 5,854,125.90
  5. Step 5: Solve for x
    x = 5,854,125.90/3,561.21
  6. Step 6: Final answer
    x = 1,643.86

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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.