Home / 2,879.21-4,317.27-1,029.31

Finding the Fourth Proportional to 2,879.21, 4,317.27 and 1,029.31

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Solution

The fourth proportional to 2,879.21, 4,317.27 and 1,029.31 is: 1,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,879.21 : 4,317.27 = 1,029.31 : x
  2. Step 2: Convert to fraction form
    2,879.21/4,317.27 = 1,029.31/x
  3. Step 3: Cross multiply
    2,879.21x = 4,317.27 × 1,029.31
  4. Step 4: Simplify right side
    2,879.21x = 4,443,809.18
  5. Step 5: Solve for x
    x = 4,443,809.18/2,879.21
  6. Step 6: Final answer
    x = 1,543.42

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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.