Home / 3,989.57-5,504.19-2,310.06

Finding the Fourth Proportional to 3,989.57, 5,504.19 and 2,310.06

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Solution

The fourth proportional to 3,989.57, 5,504.19 and 2,310.06 is: 3,187.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.57 : 5,504.19 = 2,310.06 : x
  2. Step 2: Convert to fraction form
    3,989.57/5,504.19 = 2,310.06/x
  3. Step 3: Cross multiply
    3,989.57x = 5,504.19 × 2,310.06
  4. Step 4: Simplify right side
    3,989.57x = 12,715,011.36
  5. Step 5: Solve for x
    x = 12,715,011.36/3,989.57
  6. Step 6: Final answer
    x = 3,187.06

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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.