Home / 5,588.22-8,380.24-1,638.66

Finding the Fourth Proportional to 5,588.22, 8,380.24 and 1,638.66

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Solution

The fourth proportional to 5,588.22, 8,380.24 and 1,638.66 is: 2,457.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,588.22 : 8,380.24 = 1,638.66 : x
  2. Step 2: Convert to fraction form
    5,588.22/8,380.24 = 1,638.66/x
  3. Step 3: Cross multiply
    5,588.22x = 8,380.24 × 1,638.66
  4. Step 4: Simplify right side
    5,588.22x = 13,732,355.89
  5. Step 5: Solve for x
    x = 13,732,355.89/5,588.22
  6. Step 6: Final answer
    x = 2,457.38

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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.