Home / 4,121.79-6,186.80-1,932.09

Finding the Fourth Proportional to 4,121.79, 6,186.80 and 1,932.09

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Solution

The fourth proportional to 4,121.79, 6,186.80 and 1,932.09 is: 2,900.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.79 : 6,186.80 = 1,932.09 : x
  2. Step 2: Convert to fraction form
    4,121.79/6,186.80 = 1,932.09/x
  3. Step 3: Cross multiply
    4,121.79x = 6,186.80 × 1,932.09
  4. Step 4: Simplify right side
    4,121.79x = 11,953,444.75
  5. Step 5: Solve for x
    x = 11,953,444.75/4,121.79
  6. Step 6: Final answer
    x = 2,900.06

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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.