Home / 3,879.83-5,818.37-1,247.23

Finding the Fourth Proportional to 3,879.83, 5,818.37 and 1,247.23

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Solution

The fourth proportional to 3,879.83, 5,818.37 and 1,247.23 is: 1,870.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,879.83 : 5,818.37 = 1,247.23 : x
  2. Step 2: Convert to fraction form
    3,879.83/5,818.37 = 1,247.23/x
  3. Step 3: Cross multiply
    3,879.83x = 5,818.37 × 1,247.23
  4. Step 4: Simplify right side
    3,879.83x = 7,256,846.65
  5. Step 5: Solve for x
    x = 7,256,846.65/3,879.83
  6. Step 6: Final answer
    x = 1,870.40

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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.