Home / 5,188.68-7,784.38-1,725.96

Finding the Fourth Proportional to 5,188.68, 7,784.38 and 1,725.96

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Solution

The fourth proportional to 5,188.68, 7,784.38 and 1,725.96 is: 2,589.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.68 : 7,784.38 = 1,725.96 : x
  2. Step 2: Convert to fraction form
    5,188.68/7,784.38 = 1,725.96/x
  3. Step 3: Cross multiply
    5,188.68x = 7,784.38 × 1,725.96
  4. Step 4: Simplify right side
    5,188.68x = 13,435,528.50
  5. Step 5: Solve for x
    x = 13,435,528.50/5,188.68
  6. Step 6: Final answer
    x = 2,589.39

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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.