Home / 2,788.86-4,184.19-1,679.48

Finding the Fourth Proportional to 2,788.86, 4,184.19 and 1,679.48

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Solution

The fourth proportional to 2,788.86, 4,184.19 and 1,679.48 is: 2,519.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.86 : 4,184.19 = 1,679.48 : x
  2. Step 2: Convert to fraction form
    2,788.86/4,184.19 = 1,679.48/x
  3. Step 3: Cross multiply
    2,788.86x = 4,184.19 × 1,679.48
  4. Step 4: Simplify right side
    2,788.86x = 7,027,263.42
  5. Step 5: Solve for x
    x = 7,027,263.42/2,788.86
  6. Step 6: Final answer
    x = 2,519.76

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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.