Home / 1,986.29-2,979.83-599.57

Finding the Fourth Proportional to 1,986.29, 2,979.83 and 599.57

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Solution

The fourth proportional to 1,986.29, 2,979.83 and 599.57 is: 899.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.29 : 2,979.83 = 599.57 : x
  2. Step 2: Convert to fraction form
    1,986.29/2,979.83 = 599.57/x
  3. Step 3: Cross multiply
    1,986.29x = 2,979.83 × 599.57
  4. Step 4: Simplify right side
    1,986.29x = 1,786,598.78
  5. Step 5: Solve for x
    x = 1,786,598.78/1,986.29
  6. Step 6: Final answer
    x = 899.47

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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.