Home / 3,355.64-5,033.76-1,380.81

Finding the Fourth Proportional to 3,355.64, 5,033.76 and 1,380.81

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Solution

The fourth proportional to 3,355.64, 5,033.76 and 1,380.81 is: 2,071.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.64 : 5,033.76 = 1,380.81 : x
  2. Step 2: Convert to fraction form
    3,355.64/5,033.76 = 1,380.81/x
  3. Step 3: Cross multiply
    3,355.64x = 5,033.76 × 1,380.81
  4. Step 4: Simplify right side
    3,355.64x = 6,950,666.15
  5. Step 5: Solve for x
    x = 6,950,666.15/3,355.64
  6. Step 6: Final answer
    x = 2,071.34

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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.