Home / 6,779.20-10,172.56-3,316.48

Finding the Fourth Proportional to 6,779.20, 10,172.56 and 3,316.48

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Solution

The fourth proportional to 6,779.20, 10,172.56 and 3,316.48 is: 4,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.20 : 10,172.56 = 3,316.48 : x
  2. Step 2: Convert to fraction form
    6,779.20/10,172.56 = 3,316.48/x
  3. Step 3: Cross multiply
    6,779.20x = 10,172.56 × 3,316.48
  4. Step 4: Simplify right side
    6,779.20x = 33,737,091.79
  5. Step 5: Solve for x
    x = 33,737,091.79/6,779.20
  6. Step 6: Final answer
    x = 4,976.56

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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.