Home / 3,932.40-5,426.69-2,164.00

Finding the Fourth Proportional to 3,932.40, 5,426.69 and 2,164.00

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Solution

The fourth proportional to 3,932.40, 5,426.69 and 2,164.00 is: 2,986.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.40 : 5,426.69 = 2,164.00 : x
  2. Step 2: Convert to fraction form
    3,932.40/5,426.69 = 2,164.00/x
  3. Step 3: Cross multiply
    3,932.40x = 5,426.69 × 2,164.00
  4. Step 4: Simplify right side
    3,932.40x = 11,743,349.00
  5. Step 5: Solve for x
    x = 11,743,349.00/3,932.40
  6. Step 6: Final answer
    x = 2,986.31

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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.