Home / 3,983.40-5,497.14-2,190.97

Finding the Fourth Proportional to 3,983.40, 5,497.14 and 2,190.97

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Solution

The fourth proportional to 3,983.40, 5,497.14 and 2,190.97 is: 3,023.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.40 : 5,497.14 = 2,190.97 : x
  2. Step 2: Convert to fraction form
    3,983.40/5,497.14 = 2,190.97/x
  3. Step 3: Cross multiply
    3,983.40x = 5,497.14 × 2,190.97
  4. Step 4: Simplify right side
    3,983.40x = 12,044,068.83
  5. Step 5: Solve for x
    x = 12,044,068.83/3,983.40
  6. Step 6: Final answer
    x = 3,023.57

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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.