Home / 5,890-8,128.11-3,237.43

Finding the Fourth Proportional to 5,890, 8,128.11 and 3,237.43

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Solution

The fourth proportional to 5,890, 8,128.11 and 3,237.43 is: 4,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890 : 8,128.11 = 3,237.43 : x
  2. Step 2: Convert to fraction form
    5,890/8,128.11 = 3,237.43/x
  3. Step 3: Cross multiply
    5,890x = 8,128.11 × 3,237.43
  4. Step 4: Simplify right side
    5,890x = 26,314,187.16
  5. Step 5: Solve for x
    x = 26,314,187.16/5,890
  6. Step 6: Final answer
    x = 4,467.60

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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.