Home / 5,412.18-8,118.33-1,949.46

Finding the Fourth Proportional to 5,412.18, 8,118.33 and 1,949.46

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Solution

The fourth proportional to 5,412.18, 8,118.33 and 1,949.46 is: 2,924.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,412.18 : 8,118.33 = 1,949.46 : x
  2. Step 2: Convert to fraction form
    5,412.18/8,118.33 = 1,949.46/x
  3. Step 3: Cross multiply
    5,412.18x = 8,118.33 × 1,949.46
  4. Step 4: Simplify right side
    5,412.18x = 15,826,359.60
  5. Step 5: Solve for x
    x = 15,826,359.60/5,412.18
  6. Step 6: Final answer
    x = 2,924.21

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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.