Home / 5,451.32-8,156.37-3,231.35

Finding the Fourth Proportional to 5,451.32, 8,156.37 and 3,231.35

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Solution

The fourth proportional to 5,451.32, 8,156.37 and 3,231.35 is: 4,834.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,451.32 : 8,156.37 = 3,231.35 : x
  2. Step 2: Convert to fraction form
    5,451.32/8,156.37 = 3,231.35/x
  3. Step 3: Cross multiply
    5,451.32x = 8,156.37 × 3,231.35
  4. Step 4: Simplify right side
    5,451.32x = 26,356,106.59
  5. Step 5: Solve for x
    x = 26,356,106.59/5,451.32
  6. Step 6: Final answer
    x = 4,834.81

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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.