Home / 3,080.28-4,622.65-1,231.91

Finding the Fourth Proportional to 3,080.28, 4,622.65 and 1,231.91

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Solution

The fourth proportional to 3,080.28, 4,622.65 and 1,231.91 is: 1,848.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.28 : 4,622.65 = 1,231.91 : x
  2. Step 2: Convert to fraction form
    3,080.28/4,622.65 = 1,231.91/x
  3. Step 3: Cross multiply
    3,080.28x = 4,622.65 × 1,231.91
  4. Step 4: Simplify right side
    3,080.28x = 5,694,701.86
  5. Step 5: Solve for x
    x = 5,694,701.86/3,080.28
  6. Step 6: Final answer
    x = 1,848.76

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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.