Home / 3,716.28-5,575.14-1,986.84

Finding the Fourth Proportional to 3,716.28, 5,575.14 and 1,986.84

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Solution

The fourth proportional to 3,716.28, 5,575.14 and 1,986.84 is: 2,980.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,716.28 : 5,575.14 = 1,986.84 : x
  2. Step 2: Convert to fraction form
    3,716.28/5,575.14 = 1,986.84/x
  3. Step 3: Cross multiply
    3,716.28x = 5,575.14 × 1,986.84
  4. Step 4: Simplify right side
    3,716.28x = 11,076,911.16
  5. Step 5: Solve for x
    x = 11,076,911.16/3,716.28
  6. Step 6: Final answer
    x = 2,980.64

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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.