Home / 3,214.88-4,436.64-1,779.26

Finding the Fourth Proportional to 3,214.88, 4,436.64 and 1,779.26

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Solution

The fourth proportional to 3,214.88, 4,436.64 and 1,779.26 is: 2,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.88 : 4,436.64 = 1,779.26 : x
  2. Step 2: Convert to fraction form
    3,214.88/4,436.64 = 1,779.26/x
  3. Step 3: Cross multiply
    3,214.88x = 4,436.64 × 1,779.26
  4. Step 4: Simplify right side
    3,214.88x = 7,893,913.90
  5. Step 5: Solve for x
    x = 7,893,913.90/3,214.88
  6. Step 6: Final answer
    x = 2,455.43

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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.