Home / 3,151.45-4,723.26-1,505.80

Finding the Fourth Proportional to 3,151.45, 4,723.26 and 1,505.80

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Solution

The fourth proportional to 3,151.45, 4,723.26 and 1,505.80 is: 2,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.45 : 4,723.26 = 1,505.80 : x
  2. Step 2: Convert to fraction form
    3,151.45/4,723.26 = 1,505.80/x
  3. Step 3: Cross multiply
    3,151.45x = 4,723.26 × 1,505.80
  4. Step 4: Simplify right side
    3,151.45x = 7,112,284.91
  5. Step 5: Solve for x
    x = 7,112,284.91/3,151.45
  6. Step 6: Final answer
    x = 2,256.83

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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.