Home / 2,616.24-3,905.97-1,996.68

Finding the Fourth Proportional to 2,616.24, 3,905.97 and 1,996.68

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Solution

The fourth proportional to 2,616.24, 3,905.97 and 1,996.68 is: 2,980.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,616.24 : 3,905.97 = 1,996.68 : x
  2. Step 2: Convert to fraction form
    2,616.24/3,905.97 = 1,996.68/x
  3. Step 3: Cross multiply
    2,616.24x = 3,905.97 × 1,996.68
  4. Step 4: Simplify right side
    2,616.24x = 7,798,972.18
  5. Step 5: Solve for x
    x = 7,798,972.18/2,616.24
  6. Step 6: Final answer
    x = 2,980.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.