Home / 3,128.54-4,698.18-2,777.94

Finding the Fourth Proportional to 3,128.54, 4,698.18 and 2,777.94

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Solution

The fourth proportional to 3,128.54, 4,698.18 and 2,777.94 is: 4,171.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.54 : 4,698.18 = 2,777.94 : x
  2. Step 2: Convert to fraction form
    3,128.54/4,698.18 = 2,777.94/x
  3. Step 3: Cross multiply
    3,128.54x = 4,698.18 × 2,777.94
  4. Step 4: Simplify right side
    3,128.54x = 13,051,224.77
  5. Step 5: Solve for x
    x = 13,051,224.77/3,128.54
  6. Step 6: Final answer
    x = 4,171.67

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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.