Home / 2,864.97-3,952.47-1,908.31

Finding the Fourth Proportional to 2,864.97, 3,952.47 and 1,908.31

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Solution

The fourth proportional to 2,864.97, 3,952.47 and 1,908.31 is: 2,632.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.97 : 3,952.47 = 1,908.31 : x
  2. Step 2: Convert to fraction form
    2,864.97/3,952.47 = 1,908.31/x
  3. Step 3: Cross multiply
    2,864.97x = 3,952.47 × 1,908.31
  4. Step 4: Simplify right side
    2,864.97x = 7,542,537.34
  5. Step 5: Solve for x
    x = 7,542,537.34/2,864.97
  6. Step 6: Final answer
    x = 2,632.68

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1.5x scale

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.