Home / 3,983.09-5,974.81-1,210.15

Finding the Fourth Proportional to 3,983.09, 5,974.81 and 1,210.15

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Solution

The fourth proportional to 3,983.09, 5,974.81 and 1,210.15 is: 1,815.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.09 : 5,974.81 = 1,210.15 : x
  2. Step 2: Convert to fraction form
    3,983.09/5,974.81 = 1,210.15/x
  3. Step 3: Cross multiply
    3,983.09x = 5,974.81 × 1,210.15
  4. Step 4: Simplify right side
    3,983.09x = 7,230,416.32
  5. Step 5: Solve for x
    x = 7,230,416.32/3,983.09
  6. Step 6: Final answer
    x = 1,815.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.