Home / 3,935.52-5,903.64-1,986.48

Finding the Fourth Proportional to 3,935.52, 5,903.64 and 1,986.48

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Solution

The fourth proportional to 3,935.52, 5,903.64 and 1,986.48 is: 2,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.52 : 5,903.64 = 1,986.48 : x
  2. Step 2: Convert to fraction form
    3,935.52/5,903.64 = 1,986.48/x
  3. Step 3: Cross multiply
    3,935.52x = 5,903.64 × 1,986.48
  4. Step 4: Simplify right side
    3,935.52x = 11,727,462.79
  5. Step 5: Solve for x
    x = 11,727,462.79/3,935.52
  6. Step 6: Final answer
    x = 2,979.90

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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.