Home / 3,877.44-5,814.92-1,279.76

Finding the Fourth Proportional to 3,877.44, 5,814.92 and 1,279.76

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Solution

The fourth proportional to 3,877.44, 5,814.92 and 1,279.76 is: 1,919.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.44 : 5,814.92 = 1,279.76 : x
  2. Step 2: Convert to fraction form
    3,877.44/5,814.92 = 1,279.76/x
  3. Step 3: Cross multiply
    3,877.44x = 5,814.92 × 1,279.76
  4. Step 4: Simplify right side
    3,877.44x = 7,441,702.02
  5. Step 5: Solve for x
    x = 7,441,702.02/3,877.44
  6. Step 6: Final answer
    x = 1,919.23

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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.