Home / 3,216.97-4,817.96-3,128.30

Finding the Fourth Proportional to 3,216.97, 4,817.96 and 3,128.30

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Solution

The fourth proportional to 3,216.97, 4,817.96 and 3,128.30 is: 4,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.97 : 4,817.96 = 3,128.30 : x
  2. Step 2: Convert to fraction form
    3,216.97/4,817.96 = 3,128.30/x
  3. Step 3: Cross multiply
    3,216.97x = 4,817.96 × 3,128.30
  4. Step 4: Simplify right side
    3,216.97x = 15,072,024.27
  5. Step 5: Solve for x
    x = 15,072,024.27/3,216.97
  6. Step 6: Final answer
    x = 4,685.16

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1.5x scale

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.