Home / 3,609.52-5,412.36-1,660

Finding the Fourth Proportional to 3,609.52, 5,412.36 and 1,660

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Solution

The fourth proportional to 3,609.52, 5,412.36 and 1,660 is: 2,489.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.52 : 5,412.36 = 1,660 : x
  2. Step 2: Convert to fraction form
    3,609.52/5,412.36 = 1,660/x
  3. Step 3: Cross multiply
    3,609.52x = 5,412.36 × 1,660
  4. Step 4: Simplify right side
    3,609.52x = 8,984,517.60
  5. Step 5: Solve for x
    x = 8,984,517.60/3,609.52
  6. Step 6: Final answer
    x = 2,489.12

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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.