Home / 3,708.61-5,112.43-2,822.88

Finding the Fourth Proportional to 3,708.61, 5,112.43 and 2,822.88

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Solution

The fourth proportional to 3,708.61, 5,112.43 and 2,822.88 is: 3,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,708.61 : 5,112.43 = 2,822.88 : x
  2. Step 2: Convert to fraction form
    3,708.61/5,112.43 = 2,822.88/x
  3. Step 3: Cross multiply
    3,708.61x = 5,112.43 × 2,822.88
  4. Step 4: Simplify right side
    3,708.61x = 14,431,776.40
  5. Step 5: Solve for x
    x = 14,431,776.40/3,708.61
  6. Step 6: Final answer
    x = 3,891.42

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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.