Home / 7,077.56-10,616.84-2,147.60

Finding the Fourth Proportional to 7,077.56, 10,616.84 and 2,147.60

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Solution

The fourth proportional to 7,077.56, 10,616.84 and 2,147.60 is: 3,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.56 : 10,616.84 = 2,147.60 : x
  2. Step 2: Convert to fraction form
    7,077.56/10,616.84 = 2,147.60/x
  3. Step 3: Cross multiply
    7,077.56x = 10,616.84 × 2,147.60
  4. Step 4: Simplify right side
    7,077.56x = 22,800,725.58
  5. Step 5: Solve for x
    x = 22,800,725.58/7,077.56
  6. Step 6: Final answer
    x = 3,221.55

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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.