Home / 3,118.40-4,677.60-3,096.80

Finding the Fourth Proportional to 3,118.40, 4,677.60 and 3,096.80

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Solution

The fourth proportional to 3,118.40, 4,677.60 and 3,096.80 is: 4,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.40 : 4,677.60 = 3,096.80 : x
  2. Step 2: Convert to fraction form
    3,118.40/4,677.60 = 3,096.80/x
  3. Step 3: Cross multiply
    3,118.40x = 4,677.60 × 3,096.80
  4. Step 4: Simplify right side
    3,118.40x = 14,485,591.68
  5. Step 5: Solve for x
    x = 14,485,591.68/3,118.40
  6. Step 6: Final answer
    x = 4,645.20

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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.