Home / 5,489.96-7,574.82-3,131.24

Finding the Fourth Proportional to 5,489.96, 7,574.82 and 3,131.24

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Solution

The fourth proportional to 5,489.96, 7,574.82 and 3,131.24 is: 4,320.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,489.96 : 7,574.82 = 3,131.24 : x
  2. Step 2: Convert to fraction form
    5,489.96/7,574.82 = 3,131.24/x
  3. Step 3: Cross multiply
    5,489.96x = 7,574.82 × 3,131.24
  4. Step 4: Simplify right side
    5,489.96x = 23,718,579.38
  5. Step 5: Solve for x
    x = 23,718,579.38/5,489.96
  6. Step 6: Final answer
    x = 4,320.36

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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.