Home / 3,967.80-5,476.17-2,532.78

Finding the Fourth Proportional to 3,967.80, 5,476.17 and 2,532.78

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Solution

The fourth proportional to 3,967.80, 5,476.17 and 2,532.78 is: 3,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.80 : 5,476.17 = 2,532.78 : x
  2. Step 2: Convert to fraction form
    3,967.80/5,476.17 = 2,532.78/x
  3. Step 3: Cross multiply
    3,967.80x = 5,476.17 × 2,532.78
  4. Step 4: Simplify right side
    3,967.80x = 13,869,939.37
  5. Step 5: Solve for x
    x = 13,869,939.37/3,967.80
  6. Step 6: Final answer
    x = 3,495.63

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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.