Home / 4,315.20-6,469.60-1,716.80

Finding the Fourth Proportional to 4,315.20, 6,469.60 and 1,716.80

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Solution

The fourth proportional to 4,315.20, 6,469.60 and 1,716.80 is: 2,573.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,315.20 : 6,469.60 = 1,716.80 : x
  2. Step 2: Convert to fraction form
    4,315.20/6,469.60 = 1,716.80/x
  3. Step 3: Cross multiply
    4,315.20x = 6,469.60 × 1,716.80
  4. Step 4: Simplify right side
    4,315.20x = 11,107,009.28
  5. Step 5: Solve for x
    x = 11,107,009.28/4,315.20
  6. Step 6: Final answer
    x = 2,573.93

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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.