Home / 5,124.40-7,680.84-3,481.36

Finding the Fourth Proportional to 5,124.40, 7,680.84 and 3,481.36

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Solution

The fourth proportional to 5,124.40, 7,680.84 and 3,481.36 is: 5,218.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.40 : 7,680.84 = 3,481.36 : x
  2. Step 2: Convert to fraction form
    5,124.40/7,680.84 = 3,481.36/x
  3. Step 3: Cross multiply
    5,124.40x = 7,680.84 × 3,481.36
  4. Step 4: Simplify right side
    5,124.40x = 26,739,769.14
  5. Step 5: Solve for x
    x = 26,739,769.14/5,124.40
  6. Step 6: Final answer
    x = 5,218.13

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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.