Home / 2,778.32-4,166.87-1,605.85

Finding the Fourth Proportional to 2,778.32, 4,166.87 and 1,605.85

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Solution

The fourth proportional to 2,778.32, 4,166.87 and 1,605.85 is: 2,408.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.32 : 4,166.87 = 1,605.85 : x
  2. Step 2: Convert to fraction form
    2,778.32/4,166.87 = 1,605.85/x
  3. Step 3: Cross multiply
    2,778.32x = 4,166.87 × 1,605.85
  4. Step 4: Simplify right side
    2,778.32x = 6,691,368.19
  5. Step 5: Solve for x
    x = 6,691,368.19/2,778.32
  6. Step 6: Final answer
    x = 2,408.42

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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.