Home / 2,191.05-3,008.36-2,133.96

Finding the Fourth Proportional to 2,191.05, 3,008.36 and 2,133.96

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Solution

The fourth proportional to 2,191.05, 3,008.36 and 2,133.96 is: 2,929.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191.05 : 3,008.36 = 2,133.96 : x
  2. Step 2: Convert to fraction form
    2,191.05/3,008.36 = 2,133.96/x
  3. Step 3: Cross multiply
    2,191.05x = 3,008.36 × 2,133.96
  4. Step 4: Simplify right side
    2,191.05x = 6,419,732.52
  5. Step 5: Solve for x
    x = 6,419,732.52/2,191.05
  6. Step 6: Final answer
    x = 2,929.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.