Home / 3,370.70-5,057.61-1,290.02

Finding the Fourth Proportional to 3,370.70, 5,057.61 and 1,290.02

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Solution

The fourth proportional to 3,370.70, 5,057.61 and 1,290.02 is: 1,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,370.70 : 5,057.61 = 1,290.02 : x
  2. Step 2: Convert to fraction form
    3,370.70/5,057.61 = 1,290.02/x
  3. Step 3: Cross multiply
    3,370.70x = 5,057.61 × 1,290.02
  4. Step 4: Simplify right side
    3,370.70x = 6,524,395.18
  5. Step 5: Solve for x
    x = 6,524,395.18/3,370.70
  6. Step 6: Final answer
    x = 1,935.62

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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.