Home / 5,558.21-7,671.70-3,321.41

Finding the Fourth Proportional to 5,558.21, 7,671.70 and 3,321.41

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Solution

The fourth proportional to 5,558.21, 7,671.70 and 3,321.41 is: 4,584.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,558.21 : 7,671.70 = 3,321.41 : x
  2. Step 2: Convert to fraction form
    5,558.21/7,671.70 = 3,321.41/x
  3. Step 3: Cross multiply
    5,558.21x = 7,671.70 × 3,321.41
  4. Step 4: Simplify right side
    5,558.21x = 25,480,870.77
  5. Step 5: Solve for x
    x = 25,480,870.77/5,558.21
  6. Step 6: Final answer
    x = 4,584.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.