Home / 1,821.66-2,731.20-1,235.22

Finding the Fourth Proportional to 1,821.66, 2,731.20 and 1,235.22

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Solution

The fourth proportional to 1,821.66, 2,731.20 and 1,235.22 is: 1,851.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.66 : 2,731.20 = 1,235.22 : x
  2. Step 2: Convert to fraction form
    1,821.66/2,731.20 = 1,235.22/x
  3. Step 3: Cross multiply
    1,821.66x = 2,731.20 × 1,235.22
  4. Step 4: Simplify right side
    1,821.66x = 3,373,632.86
  5. Step 5: Solve for x
    x = 3,373,632.86/1,821.66
  6. Step 6: Final answer
    x = 1,851.96

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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.