Home / 4,315.80-6,469.74-1,392.60

Finding the Fourth Proportional to 4,315.80, 6,469.74 and 1,392.60

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Solution

The fourth proportional to 4,315.80, 6,469.74 and 1,392.60 is: 2,087.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.80 : 6,469.74 = 1,392.60 : x
  2. Step 2: Convert to fraction form
    4,315.80/6,469.74 = 1,392.60/x
  3. Step 3: Cross multiply
    4,315.80x = 6,469.74 × 1,392.60
  4. Step 4: Simplify right side
    4,315.80x = 9,009,759.92
  5. Step 5: Solve for x
    x = 9,009,759.92/4,315.80
  6. Step 6: Final answer
    x = 2,087.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.