Home / 3,128.46-4,698.06-2,777.86

Finding the Fourth Proportional to 3,128.46, 4,698.06 and 2,777.86

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Solution

The fourth proportional to 3,128.46, 4,698.06 and 2,777.86 is: 4,171.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.46 : 4,698.06 = 2,777.86 : x
  2. Step 2: Convert to fraction form
    3,128.46/4,698.06 = 2,777.86/x
  3. Step 3: Cross multiply
    3,128.46x = 4,698.06 × 2,777.86
  4. Step 4: Simplify right side
    3,128.46x = 13,050,548.41
  5. Step 5: Solve for x
    x = 13,050,548.41/3,128.46
  6. Step 6: Final answer
    x = 4,171.56

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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.