Home / 5,108.44-7,661.29-1,409.80

Finding the Fourth Proportional to 5,108.44, 7,661.29 and 1,409.80

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Solution

The fourth proportional to 5,108.44, 7,661.29 and 1,409.80 is: 2,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.44 : 7,661.29 = 1,409.80 : x
  2. Step 2: Convert to fraction form
    5,108.44/7,661.29 = 1,409.80/x
  3. Step 3: Cross multiply
    5,108.44x = 7,661.29 × 1,409.80
  4. Step 4: Simplify right side
    5,108.44x = 10,800,886.64
  5. Step 5: Solve for x
    x = 10,800,886.64/5,108.44
  6. Step 6: Final answer
    x = 2,114.32

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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.