Home / 6,779.60-10,168.76-2,161.36

Finding the Fourth Proportional to 6,779.60, 10,168.76 and 2,161.36

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Solution

The fourth proportional to 6,779.60, 10,168.76 and 2,161.36 is: 3,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.60 : 10,168.76 = 2,161.36 : x
  2. Step 2: Convert to fraction form
    6,779.60/10,168.76 = 2,161.36/x
  3. Step 3: Cross multiply
    6,779.60x = 10,168.76 × 2,161.36
  4. Step 4: Simplify right side
    6,779.60x = 21,978,351.11
  5. Step 5: Solve for x
    x = 21,978,351.11/6,779.60
  6. Step 6: Final answer
    x = 3,241.84

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1.5x scale

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.