Home / 7,727.60-10,664.07-4,190.81

Finding the Fourth Proportional to 7,727.60, 10,664.07 and 4,190.81

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Solution

The fourth proportional to 7,727.60, 10,664.07 and 4,190.81 is: 5,783.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.60 : 10,664.07 = 4,190.81 : x
  2. Step 2: Convert to fraction form
    7,727.60/10,664.07 = 4,190.81/x
  3. Step 3: Cross multiply
    7,727.60x = 10,664.07 × 4,190.81
  4. Step 4: Simplify right side
    7,727.60x = 44,691,091.20
  5. Step 5: Solve for x
    x = 44,691,091.20/7,727.60
  6. Step 6: Final answer
    x = 5,783.31

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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.