Home / 2,879.58-4,320.59-1,418.75

Finding the Fourth Proportional to 2,879.58, 4,320.59 and 1,418.75

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Solution

The fourth proportional to 2,879.58, 4,320.59 and 1,418.75 is: 2,128.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.58 : 4,320.59 = 1,418.75 : x
  2. Step 2: Convert to fraction form
    2,879.58/4,320.59 = 1,418.75/x
  3. Step 3: Cross multiply
    2,879.58x = 4,320.59 × 1,418.75
  4. Step 4: Simplify right side
    2,879.58x = 6,129,808.37
  5. Step 5: Solve for x
    x = 6,129,808.37/2,879.58
  6. Step 6: Final answer
    x = 2,128.72

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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.