Home / 2,328.30-3,211.44-1,443

Finding the Fourth Proportional to 2,328.30, 3,211.44 and 1,443

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Solution

The fourth proportional to 2,328.30, 3,211.44 and 1,443 is: 1,990.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.30 : 3,211.44 = 1,443 : x
  2. Step 2: Convert to fraction form
    2,328.30/3,211.44 = 1,443/x
  3. Step 3: Cross multiply
    2,328.30x = 3,211.44 × 1,443
  4. Step 4: Simplify right side
    2,328.30x = 4,634,107.92
  5. Step 5: Solve for x
    x = 4,634,107.92/2,328.30
  6. Step 6: Final answer
    x = 1,990.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.