Home / 3,983.58-5,499.64-2,661.66

Finding the Fourth Proportional to 3,983.58, 5,499.64 and 2,661.66

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Solution

The fourth proportional to 3,983.58, 5,499.64 and 2,661.66 is: 3,674.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.58 : 5,499.64 = 2,661.66 : x
  2. Step 2: Convert to fraction form
    3,983.58/5,499.64 = 2,661.66/x
  3. Step 3: Cross multiply
    3,983.58x = 5,499.64 × 2,661.66
  4. Step 4: Simplify right side
    3,983.58x = 14,638,171.80
  5. Step 5: Solve for x
    x = 14,638,171.80/3,983.58
  6. Step 6: Final answer
    x = 3,674.63

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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.