Home / 7,119.55-10,680.54-2,189.08

Finding the Fourth Proportional to 7,119.55, 10,680.54 and 2,189.08

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Solution

The fourth proportional to 7,119.55, 10,680.54 and 2,189.08 is: 3,284.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.55 : 10,680.54 = 2,189.08 : x
  2. Step 2: Convert to fraction form
    7,119.55/10,680.54 = 2,189.08/x
  3. Step 3: Cross multiply
    7,119.55x = 10,680.54 × 2,189.08
  4. Step 4: Simplify right side
    7,119.55x = 23,380,573.96
  5. Step 5: Solve for x
    x = 23,380,573.96/7,119.55
  6. Step 6: Final answer
    x = 3,284.00

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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.