Home / 3,482.40-5,211.45-3,190.80

Finding the Fourth Proportional to 3,482.40, 5,211.45 and 3,190.80

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Solution

The fourth proportional to 3,482.40, 5,211.45 and 3,190.80 is: 4,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,482.40 : 5,211.45 = 3,190.80 : x
  2. Step 2: Convert to fraction form
    3,482.40/5,211.45 = 3,190.80/x
  3. Step 3: Cross multiply
    3,482.40x = 5,211.45 × 3,190.80
  4. Step 4: Simplify right side
    3,482.40x = 16,628,694.66
  5. Step 5: Solve for x
    x = 16,628,694.66/3,482.40
  6. Step 6: Final answer
    x = 4,775.07

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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.