Home / 7,305.12-10,081.10-4,161.32

Finding the Fourth Proportional to 7,305.12, 10,081.10 and 4,161.32

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Solution

The fourth proportional to 7,305.12, 10,081.10 and 4,161.32 is: 5,742.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.12 : 10,081.10 = 4,161.32 : x
  2. Step 2: Convert to fraction form
    7,305.12/10,081.10 = 4,161.32/x
  3. Step 3: Cross multiply
    7,305.12x = 10,081.10 × 4,161.32
  4. Step 4: Simplify right side
    7,305.12x = 41,950,683.05
  5. Step 5: Solve for x
    x = 41,950,683.05/7,305.12
  6. Step 6: Final answer
    x = 5,742.64

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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.