Home / 5,521.18-8,281.68-1,361.22

Finding the Fourth Proportional to 5,521.18, 8,281.68 and 1,361.22

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Solution

The fourth proportional to 5,521.18, 8,281.68 and 1,361.22 is: 2,041.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.18 : 8,281.68 = 1,361.22 : x
  2. Step 2: Convert to fraction form
    5,521.18/8,281.68 = 1,361.22/x
  3. Step 3: Cross multiply
    5,521.18x = 8,281.68 × 1,361.22
  4. Step 4: Simplify right side
    5,521.18x = 11,273,188.45
  5. Step 5: Solve for x
    x = 11,273,188.45/5,521.18
  6. Step 6: Final answer
    x = 2,041.81

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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.