Home / 3,083.98-4,253.90-2,139.32

Finding the Fourth Proportional to 3,083.98, 4,253.90 and 2,139.32

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Solution

The fourth proportional to 3,083.98, 4,253.90 and 2,139.32 is: 2,950.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.98 : 4,253.90 = 2,139.32 : x
  2. Step 2: Convert to fraction form
    3,083.98/4,253.90 = 2,139.32/x
  3. Step 3: Cross multiply
    3,083.98x = 4,253.90 × 2,139.32
  4. Step 4: Simplify right side
    3,083.98x = 9,100,453.35
  5. Step 5: Solve for x
    x = 9,100,453.35/3,083.98
  6. Step 6: Final answer
    x = 2,950.88

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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.