Home / 3,211.57-4,817.75-1,103.60

Finding the Fourth Proportional to 3,211.57, 4,817.75 and 1,103.60

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Solution

The fourth proportional to 3,211.57, 4,817.75 and 1,103.60 is: 1,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.57 : 4,817.75 = 1,103.60 : x
  2. Step 2: Convert to fraction form
    3,211.57/4,817.75 = 1,103.60/x
  3. Step 3: Cross multiply
    3,211.57x = 4,817.75 × 1,103.60
  4. Step 4: Simplify right side
    3,211.57x = 5,316,868.90
  5. Step 5: Solve for x
    x = 5,316,868.90/3,211.57
  6. Step 6: Final answer
    x = 1,655.54

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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.