Home / 3,992.18-5,991.10-1,395.14

Finding the Fourth Proportional to 3,992.18, 5,991.10 and 1,395.14

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Solution

The fourth proportional to 3,992.18, 5,991.10 and 1,395.14 is: 2,093.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.18 : 5,991.10 = 1,395.14 : x
  2. Step 2: Convert to fraction form
    3,992.18/5,991.10 = 1,395.14/x
  3. Step 3: Cross multiply
    3,992.18x = 5,991.10 × 1,395.14
  4. Step 4: Simplify right side
    3,992.18x = 8,358,389.81
  5. Step 5: Solve for x
    x = 8,358,389.81/3,992.18
  6. Step 6: Final answer
    x = 2,093.69

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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.