Home / 3,216.40-4,824.60-2,114.80

Finding the Fourth Proportional to 3,216.40, 4,824.60 and 2,114.80

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Solution

The fourth proportional to 3,216.40, 4,824.60 and 2,114.80 is: 3,172.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.40 : 4,824.60 = 2,114.80 : x
  2. Step 2: Convert to fraction form
    3,216.40/4,824.60 = 2,114.80/x
  3. Step 3: Cross multiply
    3,216.40x = 4,824.60 × 2,114.80
  4. Step 4: Simplify right side
    3,216.40x = 10,203,064.08
  5. Step 5: Solve for x
    x = 10,203,064.08/3,216.40
  6. Step 6: Final answer
    x = 3,172.20

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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.