Home / 3,991.52-5,988.36-2,261.36

Finding the Fourth Proportional to 3,991.52, 5,988.36 and 2,261.36

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Solution

The fourth proportional to 3,991.52, 5,988.36 and 2,261.36 is: 3,392.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.52 : 5,988.36 = 2,261.36 : x
  2. Step 2: Convert to fraction form
    3,991.52/5,988.36 = 2,261.36/x
  3. Step 3: Cross multiply
    3,991.52x = 5,988.36 × 2,261.36
  4. Step 4: Simplify right side
    3,991.52x = 13,541,837.77
  5. Step 5: Solve for x
    x = 13,541,837.77/3,991.52
  6. Step 6: Final answer
    x = 3,392.65

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1.5x scale

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.