Home / 5,485.41-8,221.23-2,361.87

Finding the Fourth Proportional to 5,485.41, 8,221.23 and 2,361.87

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Solution

The fourth proportional to 5,485.41, 8,221.23 and 2,361.87 is: 3,539.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.41 : 8,221.23 = 2,361.87 : x
  2. Step 2: Convert to fraction form
    5,485.41/8,221.23 = 2,361.87/x
  3. Step 3: Cross multiply
    5,485.41x = 8,221.23 × 2,361.87
  4. Step 4: Simplify right side
    5,485.41x = 19,417,476.50
  5. Step 5: Solve for x
    x = 19,417,476.50/5,485.41
  6. Step 6: Final answer
    x = 3,539.84

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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.