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Finding the Fourth Proportional to 3,161.67, 4,355.98 and 2,203.67

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Solution

The fourth proportional to 3,161.67, 4,355.98 and 2,203.67 is: 3,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.67 : 4,355.98 = 2,203.67 : x
  2. Step 2: Convert to fraction form
    3,161.67/4,355.98 = 2,203.67/x
  3. Step 3: Cross multiply
    3,161.67x = 4,355.98 × 2,203.67
  4. Step 4: Simplify right side
    3,161.67x = 9,599,147.83
  5. Step 5: Solve for x
    x = 9,599,147.83/3,161.67
  6. Step 6: Final answer
    x = 3,036.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.