Home / 2,879.24-3,975.95-1,818.88

Finding the Fourth Proportional to 2,879.24, 3,975.95 and 1,818.88

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Solution

The fourth proportional to 2,879.24, 3,975.95 and 1,818.88 is: 2,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.24 : 3,975.95 = 1,818.88 : x
  2. Step 2: Convert to fraction form
    2,879.24/3,975.95 = 1,818.88/x
  3. Step 3: Cross multiply
    2,879.24x = 3,975.95 × 1,818.88
  4. Step 4: Simplify right side
    2,879.24x = 7,231,775.94
  5. Step 5: Solve for x
    x = 7,231,775.94/2,879.24
  6. Step 6: Final answer
    x = 2,511.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.