Home / 7,180.45-9,909.92-4,036.63

Finding the Fourth Proportional to 7,180.45, 9,909.92 and 4,036.63

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Solution

The fourth proportional to 7,180.45, 9,909.92 and 4,036.63 is: 5,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180.45 : 9,909.92 = 4,036.63 : x
  2. Step 2: Convert to fraction form
    7,180.45/9,909.92 = 4,036.63/x
  3. Step 3: Cross multiply
    7,180.45x = 9,909.92 × 4,036.63
  4. Step 4: Simplify right side
    7,180.45x = 40,002,610.64
  5. Step 5: Solve for x
    x = 40,002,610.64/7,180.45
  6. Step 6: Final answer
    x = 5,571.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.