Home / 2,871.91-3,964.71-1,693.36

Finding the Fourth Proportional to 2,871.91, 3,964.71 and 1,693.36

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Solution

The fourth proportional to 2,871.91, 3,964.71 and 1,693.36 is: 2,337.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.91 : 3,964.71 = 1,693.36 : x
  2. Step 2: Convert to fraction form
    2,871.91/3,964.71 = 1,693.36/x
  3. Step 3: Cross multiply
    2,871.91x = 3,964.71 × 1,693.36
  4. Step 4: Simplify right side
    2,871.91x = 6,713,681.33
  5. Step 5: Solve for x
    x = 6,713,681.33/2,871.91
  6. Step 6: Final answer
    x = 2,337.71

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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.