Home / 3,355.17-5,028.70-1,405.09

Finding the Fourth Proportional to 3,355.17, 5,028.70 and 1,405.09

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Solution

The fourth proportional to 3,355.17, 5,028.70 and 1,405.09 is: 2,105.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.17 : 5,028.70 = 1,405.09 : x
  2. Step 2: Convert to fraction form
    3,355.17/5,028.70 = 1,405.09/x
  3. Step 3: Cross multiply
    3,355.17x = 5,028.70 × 1,405.09
  4. Step 4: Simplify right side
    3,355.17x = 7,065,776.08
  5. Step 5: Solve for x
    x = 7,065,776.08/3,355.17
  6. Step 6: Final answer
    x = 2,105.94

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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.