Home / 3,607.98-4,979.64-2,116.77

Finding the Fourth Proportional to 3,607.98, 4,979.64 and 2,116.77

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Solution

The fourth proportional to 3,607.98, 4,979.64 and 2,116.77 is: 2,921.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607.98 : 4,979.64 = 2,116.77 : x
  2. Step 2: Convert to fraction form
    3,607.98/4,979.64 = 2,116.77/x
  3. Step 3: Cross multiply
    3,607.98x = 4,979.64 × 2,116.77
  4. Step 4: Simplify right side
    3,607.98x = 10,540,752.56
  5. Step 5: Solve for x
    x = 10,540,752.56/3,607.98
  6. Step 6: Final answer
    x = 2,921.51

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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.