Home / 3,172.31-4,379.77-2,038.44

Finding the Fourth Proportional to 3,172.31, 4,379.77 and 2,038.44

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Solution

The fourth proportional to 3,172.31, 4,379.77 and 2,038.44 is: 2,814.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.31 : 4,379.77 = 2,038.44 : x
  2. Step 2: Convert to fraction form
    3,172.31/4,379.77 = 2,038.44/x
  3. Step 3: Cross multiply
    3,172.31x = 4,379.77 × 2,038.44
  4. Step 4: Simplify right side
    3,172.31x = 8,927,876.46
  5. Step 5: Solve for x
    x = 8,927,876.46/3,172.31
  6. Step 6: Final answer
    x = 2,814.32

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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.