Home / 3,930.36-5,890.52-1,845.76

Finding the Fourth Proportional to 3,930.36, 5,890.52 and 1,845.76

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Solution

The fourth proportional to 3,930.36, 5,890.52 and 1,845.76 is: 2,766.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.36 : 5,890.52 = 1,845.76 : x
  2. Step 2: Convert to fraction form
    3,930.36/5,890.52 = 1,845.76/x
  3. Step 3: Cross multiply
    3,930.36x = 5,890.52 × 1,845.76
  4. Step 4: Simplify right side
    3,930.36x = 10,872,476.97
  5. Step 5: Solve for x
    x = 10,872,476.97/3,930.36
  6. Step 6: Final answer
    x = 2,766.28

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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.