Home / 3,208.40-4,812.60-2,997.20

Finding the Fourth Proportional to 3,208.40, 4,812.60 and 2,997.20

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Solution

The fourth proportional to 3,208.40, 4,812.60 and 2,997.20 is: 4,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.40 : 4,812.60 = 2,997.20 : x
  2. Step 2: Convert to fraction form
    3,208.40/4,812.60 = 2,997.20/x
  3. Step 3: Cross multiply
    3,208.40x = 4,812.60 × 2,997.20
  4. Step 4: Simplify right side
    3,208.40x = 14,424,324.72
  5. Step 5: Solve for x
    x = 14,424,324.72/3,208.40
  6. Step 6: Final answer
    x = 4,495.80

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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.