Home / 3,161.26-4,741.86-1,081.24

Finding the Fourth Proportional to 3,161.26, 4,741.86 and 1,081.24

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Solution

The fourth proportional to 3,161.26, 4,741.86 and 1,081.24 is: 1,621.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.26 : 4,741.86 = 1,081.24 : x
  2. Step 2: Convert to fraction form
    3,161.26/4,741.86 = 1,081.24/x
  3. Step 3: Cross multiply
    3,161.26x = 4,741.86 × 1,081.24
  4. Step 4: Simplify right side
    3,161.26x = 5,127,088.71
  5. Step 5: Solve for x
    x = 5,127,088.71/3,161.26
  6. Step 6: Final answer
    x = 1,621.85

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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.