Home / 3,919.26-5,879.76-1,322.13

Finding the Fourth Proportional to 3,919.26, 5,879.76 and 1,322.13

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Solution

The fourth proportional to 3,919.26, 5,879.76 and 1,322.13 is: 1,983.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919.26 : 5,879.76 = 1,322.13 : x
  2. Step 2: Convert to fraction form
    3,919.26/5,879.76 = 1,322.13/x
  3. Step 3: Cross multiply
    3,919.26x = 5,879.76 × 1,322.13
  4. Step 4: Simplify right side
    3,919.26x = 7,773,807.09
  5. Step 5: Solve for x
    x = 7,773,807.09/3,919.26
  6. Step 6: Final answer
    x = 1,983.49

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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.