Home / 7,186.26-10,779.40-1,992.14

Finding the Fourth Proportional to 7,186.26, 10,779.40 and 1,992.14

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Solution

The fourth proportional to 7,186.26, 10,779.40 and 1,992.14 is: 2,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.26 : 10,779.40 = 1,992.14 : x
  2. Step 2: Convert to fraction form
    7,186.26/10,779.40 = 1,992.14/x
  3. Step 3: Cross multiply
    7,186.26x = 10,779.40 × 1,992.14
  4. Step 4: Simplify right side
    7,186.26x = 21,474,073.92
  5. Step 5: Solve for x
    x = 21,474,073.92/7,186.26
  6. Step 6: Final answer
    x = 2,988.21

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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.