Home / 5,395.61-8,086.20-2,106.92

Finding the Fourth Proportional to 5,395.61, 8,086.20 and 2,106.92

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Solution

The fourth proportional to 5,395.61, 8,086.20 and 2,106.92 is: 3,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,395.61 : 8,086.20 = 2,106.92 : x
  2. Step 2: Convert to fraction form
    5,395.61/8,086.20 = 2,106.92/x
  3. Step 3: Cross multiply
    5,395.61x = 8,086.20 × 2,106.92
  4. Step 4: Simplify right side
    5,395.61x = 17,036,936.07
  5. Step 5: Solve for x
    x = 17,036,936.07/5,395.61
  6. Step 6: Final answer
    x = 3,157.56

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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.