Home / 3,992.20-5,989.47-1,395.34

Finding the Fourth Proportional to 3,992.20, 5,989.47 and 1,395.34

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Solution

The fourth proportional to 3,992.20, 5,989.47 and 1,395.34 is: 2,093.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.20 : 5,989.47 = 1,395.34 : x
  2. Step 2: Convert to fraction form
    3,992.20/5,989.47 = 1,395.34/x
  3. Step 3: Cross multiply
    3,992.20x = 5,989.47 × 1,395.34
  4. Step 4: Simplify right side
    3,992.20x = 8,357,347.07
  5. Step 5: Solve for x
    x = 8,357,347.07/3,992.20
  6. Step 6: Final answer
    x = 2,093.42

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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.