Home / 2,990.26-4,486.75-1,141.79

Finding the Fourth Proportional to 2,990.26, 4,486.75 and 1,141.79

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Solution

The fourth proportional to 2,990.26, 4,486.75 and 1,141.79 is: 1,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.26 : 4,486.75 = 1,141.79 : x
  2. Step 2: Convert to fraction form
    2,990.26/4,486.75 = 1,141.79/x
  3. Step 3: Cross multiply
    2,990.26x = 4,486.75 × 1,141.79
  4. Step 4: Simplify right side
    2,990.26x = 5,122,926.28
  5. Step 5: Solve for x
    x = 5,122,926.28/2,990.26
  6. Step 6: Final answer
    x = 1,713.20

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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.