Home / 2,821.37-4,233.26-1,900.40

Finding the Fourth Proportional to 2,821.37, 4,233.26 and 1,900.40

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Solution

The fourth proportional to 2,821.37, 4,233.26 and 1,900.40 is: 2,851.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.37 : 4,233.26 = 1,900.40 : x
  2. Step 2: Convert to fraction form
    2,821.37/4,233.26 = 1,900.40/x
  3. Step 3: Cross multiply
    2,821.37x = 4,233.26 × 1,900.40
  4. Step 4: Simplify right side
    2,821.37x = 8,044,870.89
  5. Step 5: Solve for x
    x = 8,044,870.89/2,821.37
  6. Step 6: Final answer
    x = 2,851.41

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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.