Home / 3,945.22-5,917.69-1,604.53

Finding the Fourth Proportional to 3,945.22, 5,917.69 and 1,604.53

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Solution

The fourth proportional to 3,945.22, 5,917.69 and 1,604.53 is: 2,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.22 : 5,917.69 = 1,604.53 : x
  2. Step 2: Convert to fraction form
    3,945.22/5,917.69 = 1,604.53/x
  3. Step 3: Cross multiply
    3,945.22x = 5,917.69 × 1,604.53
  4. Step 4: Simplify right side
    3,945.22x = 9,495,111.14
  5. Step 5: Solve for x
    x = 9,495,111.14/3,945.22
  6. Step 6: Final answer
    x = 2,406.74

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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.