Home / 2,826.10-4,239.60-1,181.80

Finding the Fourth Proportional to 2,826.10, 4,239.60 and 1,181.80

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Solution

The fourth proportional to 2,826.10, 4,239.60 and 1,181.80 is: 1,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826.10 : 4,239.60 = 1,181.80 : x
  2. Step 2: Convert to fraction form
    2,826.10/4,239.60 = 1,181.80/x
  3. Step 3: Cross multiply
    2,826.10x = 4,239.60 × 1,181.80
  4. Step 4: Simplify right side
    2,826.10x = 5,010,359.28
  5. Step 5: Solve for x
    x = 5,010,359.28/2,826.10
  6. Step 6: Final answer
    x = 1,772.89

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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.