Home / 3,968.12-5,476.50-2,199.80

Finding the Fourth Proportional to 3,968.12, 5,476.50 and 2,199.80

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Solution

The fourth proportional to 3,968.12, 5,476.50 and 2,199.80 is: 3,036.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.12 : 5,476.50 = 2,199.80 : x
  2. Step 2: Convert to fraction form
    3,968.12/5,476.50 = 2,199.80/x
  3. Step 3: Cross multiply
    3,968.12x = 5,476.50 × 2,199.80
  4. Step 4: Simplify right side
    3,968.12x = 12,047,204.70
  5. Step 5: Solve for x
    x = 12,047,204.70/3,968.12
  6. Step 6: Final answer
    x = 3,036.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.