Home / 5,131.44-7,688.31-4,007.97

Finding the Fourth Proportional to 5,131.44, 7,688.31 and 4,007.97

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Solution

The fourth proportional to 5,131.44, 7,688.31 and 4,007.97 is: 6,005.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.44 : 7,688.31 = 4,007.97 : x
  2. Step 2: Convert to fraction form
    5,131.44/7,688.31 = 4,007.97/x
  3. Step 3: Cross multiply
    5,131.44x = 7,688.31 × 4,007.97
  4. Step 4: Simplify right side
    5,131.44x = 30,814,515.83
  5. Step 5: Solve for x
    x = 30,814,515.83/5,131.44
  6. Step 6: Final answer
    x = 6,005.04

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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.