Home / 3,945.30-5,916.73-1,347.63

Finding the Fourth Proportional to 3,945.30, 5,916.73 and 1,347.63

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Solution

The fourth proportional to 3,945.30, 5,916.73 and 1,347.63 is: 2,021.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.30 : 5,916.73 = 1,347.63 : x
  2. Step 2: Convert to fraction form
    3,945.30/5,916.73 = 1,347.63/x
  3. Step 3: Cross multiply
    3,945.30x = 5,916.73 × 1,347.63
  4. Step 4: Simplify right side
    3,945.30x = 7,973,562.85
  5. Step 5: Solve for x
    x = 7,973,562.85/3,945.30
  6. Step 6: Final answer
    x = 2,021.03

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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.