Home / 5,188.07-7,784.04-3,109.56

Finding the Fourth Proportional to 5,188.07, 7,784.04 and 3,109.56

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Solution

The fourth proportional to 5,188.07, 7,784.04 and 3,109.56 is: 4,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,188.07 : 7,784.04 = 3,109.56 : x
  2. Step 2: Convert to fraction form
    5,188.07/7,784.04 = 3,109.56/x
  3. Step 3: Cross multiply
    5,188.07x = 7,784.04 × 3,109.56
  4. Step 4: Simplify right side
    5,188.07x = 24,204,939.42
  5. Step 5: Solve for x
    x = 24,204,939.42/5,188.07
  6. Step 6: Final answer
    x = 4,665.50

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1.5x scale

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.