Home / 2,821.52-4,231.19-1,665.92

Finding the Fourth Proportional to 2,821.52, 4,231.19 and 1,665.92

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Solution

The fourth proportional to 2,821.52, 4,231.19 and 1,665.92 is: 2,498.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.52 : 4,231.19 = 1,665.92 : x
  2. Step 2: Convert to fraction form
    2,821.52/4,231.19 = 1,665.92/x
  3. Step 3: Cross multiply
    2,821.52x = 4,231.19 × 1,665.92
  4. Step 4: Simplify right side
    2,821.52x = 7,048,807.05
  5. Step 5: Solve for x
    x = 7,048,807.05/2,821.52
  6. Step 6: Final answer
    x = 2,498.23

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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.