Home / 7,727.44-10,663.78-4,190.61

Finding the Fourth Proportional to 7,727.44, 10,663.78 and 4,190.61

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Solution

The fourth proportional to 7,727.44, 10,663.78 and 4,190.61 is: 5,782.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.44 : 10,663.78 = 4,190.61 : x
  2. Step 2: Convert to fraction form
    7,727.44/10,663.78 = 4,190.61/x
  3. Step 3: Cross multiply
    7,727.44x = 10,663.78 × 4,190.61
  4. Step 4: Simplify right side
    7,727.44x = 44,687,743.11
  5. Step 5: Solve for x
    x = 44,687,743.11/7,727.44
  6. Step 6: Final answer
    x = 5,782.99

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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.