Home / 7,727.22-10,663.56-4,190.45

Finding the Fourth Proportional to 7,727.22, 10,663.56 and 4,190.45

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Solution

The fourth proportional to 7,727.22, 10,663.56 and 4,190.45 is: 5,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.22 : 10,663.56 = 4,190.45 : x
  2. Step 2: Convert to fraction form
    7,727.22/10,663.56 = 4,190.45/x
  3. Step 3: Cross multiply
    7,727.22x = 10,663.56 × 4,190.45
  4. Step 4: Simplify right side
    7,727.22x = 44,685,061.68
  5. Step 5: Solve for x
    x = 44,685,061.68/7,727.22
  6. Step 6: Final answer
    x = 5,782.81

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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.