Home / 3,877.44-5,814.27-1,279.50

Finding the Fourth Proportional to 3,877.44, 5,814.27 and 1,279.50

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Solution

The fourth proportional to 3,877.44, 5,814.27 and 1,279.50 is: 1,918.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,877.44 : 5,814.27 = 1,279.50 : x
  2. Step 2: Convert to fraction form
    3,877.44/5,814.27 = 1,279.50/x
  3. Step 3: Cross multiply
    3,877.44x = 5,814.27 × 1,279.50
  4. Step 4: Simplify right side
    3,877.44x = 7,439,358.47
  5. Step 5: Solve for x
    x = 7,439,358.47/3,877.44
  6. Step 6: Final answer
    x = 1,918.63

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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.