Home / 3,990.29-5,979.23-1,523.77

Finding the Fourth Proportional to 3,990.29, 5,979.23 and 1,523.77

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Solution

The fourth proportional to 3,990.29, 5,979.23 and 1,523.77 is: 2,283.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990.29 : 5,979.23 = 1,523.77 : x
  2. Step 2: Convert to fraction form
    3,990.29/5,979.23 = 1,523.77/x
  3. Step 3: Cross multiply
    3,990.29x = 5,979.23 × 1,523.77
  4. Step 4: Simplify right side
    3,990.29x = 9,110,948.18
  5. Step 5: Solve for x
    x = 9,110,948.18/3,990.29
  6. Step 6: Final answer
    x = 2,283.28

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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.