Home / 2,790.66-4,187.33-1,230.47

Finding the Fourth Proportional to 2,790.66, 4,187.33 and 1,230.47

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Solution

The fourth proportional to 2,790.66, 4,187.33 and 1,230.47 is: 1,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.66 : 4,187.33 = 1,230.47 : x
  2. Step 2: Convert to fraction form
    2,790.66/4,187.33 = 1,230.47/x
  3. Step 3: Cross multiply
    2,790.66x = 4,187.33 × 1,230.47
  4. Step 4: Simplify right side
    2,790.66x = 5,152,383.95
  5. Step 5: Solve for x
    x = 5,152,383.95/2,790.66
  6. Step 6: Final answer
    x = 1,846.30

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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.