Home / 3,638.35-5,457.52-1,790.33

Finding the Fourth Proportional to 3,638.35, 5,457.52 and 1,790.33

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Solution

The fourth proportional to 3,638.35, 5,457.52 and 1,790.33 is: 2,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.35 : 5,457.52 = 1,790.33 : x
  2. Step 2: Convert to fraction form
    3,638.35/5,457.52 = 1,790.33/x
  3. Step 3: Cross multiply
    3,638.35x = 5,457.52 × 1,790.33
  4. Step 4: Simplify right side
    3,638.35x = 9,770,761.78
  5. Step 5: Solve for x
    x = 9,770,761.78/3,638.35
  6. Step 6: Final answer
    x = 2,685.50

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1.5x scale

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.