Home / 3,975.64-5,966.18-1,786.82

Finding the Fourth Proportional to 3,975.64, 5,966.18 and 1,786.82

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Solution

The fourth proportional to 3,975.64, 5,966.18 and 1,786.82 is: 2,681.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.64 : 5,966.18 = 1,786.82 : x
  2. Step 2: Convert to fraction form
    3,975.64/5,966.18 = 1,786.82/x
  3. Step 3: Cross multiply
    3,975.64x = 5,966.18 × 1,786.82
  4. Step 4: Simplify right side
    3,975.64x = 10,660,489.75
  5. Step 5: Solve for x
    x = 10,660,489.75/3,975.64
  6. Step 6: Final answer
    x = 2,681.45

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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.