Home / 2,990.34-4,486.52-1,324.23

Finding the Fourth Proportional to 2,990.34, 4,486.52 and 1,324.23

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Solution

The fourth proportional to 2,990.34, 4,486.52 and 1,324.23 is: 1,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.34 : 4,486.52 = 1,324.23 : x
  2. Step 2: Convert to fraction form
    2,990.34/4,486.52 = 1,324.23/x
  3. Step 3: Cross multiply
    2,990.34x = 4,486.52 × 1,324.23
  4. Step 4: Simplify right side
    2,990.34x = 5,941,195.60
  5. Step 5: Solve for x
    x = 5,941,195.60/2,990.34
  6. Step 6: Final answer
    x = 1,986.80

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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.