Home / 5,486.83-7,571.96-3,129.19

Finding the Fourth Proportional to 5,486.83, 7,571.96 and 3,129.19

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Solution

The fourth proportional to 5,486.83, 7,571.96 and 3,129.19 is: 4,318.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,486.83 : 7,571.96 = 3,129.19 : x
  2. Step 2: Convert to fraction form
    5,486.83/7,571.96 = 3,129.19/x
  3. Step 3: Cross multiply
    5,486.83x = 7,571.96 × 3,129.19
  4. Step 4: Simplify right side
    5,486.83x = 23,694,101.51
  5. Step 5: Solve for x
    x = 23,694,101.51/5,486.83
  6. Step 6: Final answer
    x = 4,318.36

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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.