Home / 5,411.25-8,119.08-2,777.43

Finding the Fourth Proportional to 5,411.25, 8,119.08 and 2,777.43

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Solution

The fourth proportional to 5,411.25, 8,119.08 and 2,777.43 is: 4,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.25 : 8,119.08 = 2,777.43 : x
  2. Step 2: Convert to fraction form
    5,411.25/8,119.08 = 2,777.43/x
  3. Step 3: Cross multiply
    5,411.25x = 8,119.08 × 2,777.43
  4. Step 4: Simplify right side
    5,411.25x = 22,550,176.36
  5. Step 5: Solve for x
    x = 22,550,176.36/5,411.25
  6. Step 6: Final answer
    x = 4,167.28

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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.