Home / 5,412.58-8,118.06-2,127.94

Finding the Fourth Proportional to 5,412.58, 8,118.06 and 2,127.94

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Solution

The fourth proportional to 5,412.58, 8,118.06 and 2,127.94 is: 3,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.58 : 8,118.06 = 2,127.94 : x
  2. Step 2: Convert to fraction form
    5,412.58/8,118.06 = 2,127.94/x
  3. Step 3: Cross multiply
    5,412.58x = 8,118.06 × 2,127.94
  4. Step 4: Simplify right side
    5,412.58x = 17,274,744.60
  5. Step 5: Solve for x
    x = 17,274,744.60/5,412.58
  6. Step 6: Final answer
    x = 3,191.59

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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.