Home / 4,408.14-6,611.54-1,121.02

Finding the Fourth Proportional to 4,408.14, 6,611.54 and 1,121.02

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Solution

The fourth proportional to 4,408.14, 6,611.54 and 1,121.02 is: 1,681.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,408.14 : 6,611.54 = 1,121.02 : x
  2. Step 2: Convert to fraction form
    4,408.14/6,611.54 = 1,121.02/x
  3. Step 3: Cross multiply
    4,408.14x = 6,611.54 × 1,121.02
  4. Step 4: Simplify right side
    4,408.14x = 7,411,668.57
  5. Step 5: Solve for x
    x = 7,411,668.57/4,408.14
  6. Step 6: Final answer
    x = 1,681.36

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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.