Home / 7,119.72-10,681.11-2,189.25

Finding the Fourth Proportional to 7,119.72, 10,681.11 and 2,189.25

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Solution

The fourth proportional to 7,119.72, 10,681.11 and 2,189.25 is: 3,284.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.72 : 10,681.11 = 2,189.25 : x
  2. Step 2: Convert to fraction form
    7,119.72/10,681.11 = 2,189.25/x
  3. Step 3: Cross multiply
    7,119.72x = 10,681.11 × 2,189.25
  4. Step 4: Simplify right side
    7,119.72x = 23,383,620.07
  5. Step 5: Solve for x
    x = 23,383,620.07/7,119.72
  6. Step 6: Final answer
    x = 3,284.35

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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.