Home / 5,911.58-8,157.81-3,393.80

Finding the Fourth Proportional to 5,911.58, 8,157.81 and 3,393.80

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Solution

The fourth proportional to 5,911.58, 8,157.81 and 3,393.80 is: 4,683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,911.58 : 8,157.81 = 3,393.80 : x
  2. Step 2: Convert to fraction form
    5,911.58/8,157.81 = 3,393.80/x
  3. Step 3: Cross multiply
    5,911.58x = 8,157.81 × 3,393.80
  4. Step 4: Simplify right side
    5,911.58x = 27,685,978.11
  5. Step 5: Solve for x
    x = 27,685,978.11/5,911.58
  6. Step 6: Final answer
    x = 4,683.34

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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.