Home / 7,941.80-11,909.66-2,675.39

Finding the Fourth Proportional to 7,941.80, 11,909.66 and 2,675.39

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Solution

The fourth proportional to 7,941.80, 11,909.66 and 2,675.39 is: 4,012.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.80 : 11,909.66 = 2,675.39 : x
  2. Step 2: Convert to fraction form
    7,941.80/11,909.66 = 2,675.39/x
  3. Step 3: Cross multiply
    7,941.80x = 11,909.66 × 2,675.39
  4. Step 4: Simplify right side
    7,941.80x = 31,862,986.86
  5. Step 5: Solve for x
    x = 31,862,986.86/7,941.80
  6. Step 6: Final answer
    x = 4,012.06

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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.