Home / 3,945.76-5,919.33-1,135.01

Finding the Fourth Proportional to 3,945.76, 5,919.33 and 1,135.01

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Solution

The fourth proportional to 3,945.76, 5,919.33 and 1,135.01 is: 1,702.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.76 : 5,919.33 = 1,135.01 : x
  2. Step 2: Convert to fraction form
    3,945.76/5,919.33 = 1,135.01/x
  3. Step 3: Cross multiply
    3,945.76x = 5,919.33 × 1,135.01
  4. Step 4: Simplify right side
    3,945.76x = 6,718,511.41
  5. Step 5: Solve for x
    x = 6,718,511.41/3,945.76
  6. Step 6: Final answer
    x = 1,702.72

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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.