Home / 6,780.56-10,161.78-2,880.08

Finding the Fourth Proportional to 6,780.56, 10,161.78 and 2,880.08

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Solution

The fourth proportional to 6,780.56, 10,161.78 and 2,880.08 is: 4,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.56 : 10,161.78 = 2,880.08 : x
  2. Step 2: Convert to fraction form
    6,780.56/10,161.78 = 2,880.08/x
  3. Step 3: Cross multiply
    6,780.56x = 10,161.78 × 2,880.08
  4. Step 4: Simplify right side
    6,780.56x = 29,266,739.34
  5. Step 5: Solve for x
    x = 29,266,739.34/6,780.56
  6. Step 6: Final answer
    x = 4,316.27

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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.