Home / 5,407.29-8,108.41-2,809.53

Finding the Fourth Proportional to 5,407.29, 8,108.41 and 2,809.53

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Solution

The fourth proportional to 5,407.29, 8,108.41 and 2,809.53 is: 4,212.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.29 : 8,108.41 = 2,809.53 : x
  2. Step 2: Convert to fraction form
    5,407.29/8,108.41 = 2,809.53/x
  3. Step 3: Cross multiply
    5,407.29x = 8,108.41 × 2,809.53
  4. Step 4: Simplify right side
    5,407.29x = 22,780,821.15
  5. Step 5: Solve for x
    x = 22,780,821.15/5,407.29
  6. Step 6: Final answer
    x = 4,212.98

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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.