Home / 1,986.19-2,979.76-599.44

Finding the Fourth Proportional to 1,986.19, 2,979.76 and 599.44

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Solution

The fourth proportional to 1,986.19, 2,979.76 and 599.44 is: 899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.19 : 2,979.76 = 599.44 : x
  2. Step 2: Convert to fraction form
    1,986.19/2,979.76 = 599.44/x
  3. Step 3: Cross multiply
    1,986.19x = 2,979.76 × 599.44
  4. Step 4: Simplify right side
    1,986.19x = 1,786,180.70
  5. Step 5: Solve for x
    x = 1,786,180.70/1,986.19
  6. Step 6: Final answer
    x = 899.30

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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.