Home / 7,687.20-10,608.56-4,329.92

Finding the Fourth Proportional to 7,687.20, 10,608.56 and 4,329.92

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Solution

The fourth proportional to 7,687.20, 10,608.56 and 4,329.92 is: 5,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.20 : 10,608.56 = 4,329.92 : x
  2. Step 2: Convert to fraction form
    7,687.20/10,608.56 = 4,329.92/x
  3. Step 3: Cross multiply
    7,687.20x = 10,608.56 × 4,329.92
  4. Step 4: Simplify right side
    7,687.20x = 45,934,216.12
  5. Step 5: Solve for x
    x = 45,934,216.12/7,687.20
  6. Step 6: Final answer
    x = 5,975.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.