Home / 7,305.40-10,080.54-4,161.64

Finding the Fourth Proportional to 7,305.40, 10,080.54 and 4,161.64

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Solution

The fourth proportional to 7,305.40, 10,080.54 and 4,161.64 is: 5,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.40 : 10,080.54 = 4,161.64 : x
  2. Step 2: Convert to fraction form
    7,305.40/10,080.54 = 4,161.64/x
  3. Step 3: Cross multiply
    7,305.40x = 10,080.54 × 4,161.64
  4. Step 4: Simplify right side
    7,305.40x = 41,951,578.49
  5. Step 5: Solve for x
    x = 41,951,578.49/7,305.40
  6. Step 6: Final answer
    x = 5,742.54

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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.