Home / 7,380.60-11,065.36-3,219.80

Finding the Fourth Proportional to 7,380.60, 11,065.36 and 3,219.80

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Solution

The fourth proportional to 7,380.60, 11,065.36 and 3,219.80 is: 4,827.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,380.60 : 11,065.36 = 3,219.80 : x
  2. Step 2: Convert to fraction form
    7,380.60/11,065.36 = 3,219.80/x
  3. Step 3: Cross multiply
    7,380.60x = 11,065.36 × 3,219.80
  4. Step 4: Simplify right side
    7,380.60x = 35,628,246.13
  5. Step 5: Solve for x
    x = 35,628,246.13/7,380.60
  6. Step 6: Final answer
    x = 4,827.28

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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.