Home / 7,120.14-10,680.44-1,926.02

Finding the Fourth Proportional to 7,120.14, 10,680.44 and 1,926.02

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Solution

The fourth proportional to 7,120.14, 10,680.44 and 1,926.02 is: 2,889.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.14 : 10,680.44 = 1,926.02 : x
  2. Step 2: Convert to fraction form
    7,120.14/10,680.44 = 1,926.02/x
  3. Step 3: Cross multiply
    7,120.14x = 10,680.44 × 1,926.02
  4. Step 4: Simplify right side
    7,120.14x = 20,570,741.05
  5. Step 5: Solve for x
    x = 20,570,741.05/7,120.14
  6. Step 6: Final answer
    x = 2,889.09

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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.