Home / 3,638.38-5,457.58-1,173.38

Finding the Fourth Proportional to 3,638.38, 5,457.58 and 1,173.38

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Solution

The fourth proportional to 3,638.38, 5,457.58 and 1,173.38 is: 1,760.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.38 : 5,457.58 = 1,173.38 : x
  2. Step 2: Convert to fraction form
    3,638.38/5,457.58 = 1,173.38/x
  3. Step 3: Cross multiply
    3,638.38x = 5,457.58 × 1,173.38
  4. Step 4: Simplify right side
    3,638.38x = 6,403,815.22
  5. Step 5: Solve for x
    x = 6,403,815.22/3,638.38
  6. Step 6: Final answer
    x = 1,760.07

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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.