Home / 6,661.44-9,989.64-2,278.08

Finding the Fourth Proportional to 6,661.44, 9,989.64 and 2,278.08

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Solution

The fourth proportional to 6,661.44, 9,989.64 and 2,278.08 is: 3,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.44 : 9,989.64 = 2,278.08 : x
  2. Step 2: Convert to fraction form
    6,661.44/9,989.64 = 2,278.08/x
  3. Step 3: Cross multiply
    6,661.44x = 9,989.64 × 2,278.08
  4. Step 4: Simplify right side
    6,661.44x = 22,757,199.09
  5. Step 5: Solve for x
    x = 22,757,199.09/6,661.44
  6. Step 6: Final answer
    x = 3,416.26

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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.