Home / 4,518.37-6,778.78-1,885

Finding the Fourth Proportional to 4,518.37, 6,778.78 and 1,885

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Solution

The fourth proportional to 4,518.37, 6,778.78 and 1,885 is: 2,828.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,518.37 : 6,778.78 = 1,885 : x
  2. Step 2: Convert to fraction form
    4,518.37/6,778.78 = 1,885/x
  3. Step 3: Cross multiply
    4,518.37x = 6,778.78 × 1,885
  4. Step 4: Simplify right side
    4,518.37x = 12,778,000.30
  5. Step 5: Solve for x
    x = 12,778,000.30/4,518.37
  6. Step 6: Final answer
    x = 2,828.01

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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.