Home / 2,919.44-4,029.72-1,800.72

Finding the Fourth Proportional to 2,919.44, 4,029.72 and 1,800.72

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Solution

The fourth proportional to 2,919.44, 4,029.72 and 1,800.72 is: 2,485.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.44 : 4,029.72 = 1,800.72 : x
  2. Step 2: Convert to fraction form
    2,919.44/4,029.72 = 1,800.72/x
  3. Step 3: Cross multiply
    2,919.44x = 4,029.72 × 1,800.72
  4. Step 4: Simplify right side
    2,919.44x = 7,256,397.40
  5. Step 5: Solve for x
    x = 7,256,397.40/2,919.44
  6. Step 6: Final answer
    x = 2,485.54

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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.