Home / 5,871.36-8,812.83-3,991.50

Finding the Fourth Proportional to 5,871.36, 8,812.83 and 3,991.50

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Solution

The fourth proportional to 5,871.36, 8,812.83 and 3,991.50 is: 5,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.36 : 8,812.83 = 3,991.50 : x
  2. Step 2: Convert to fraction form
    5,871.36/8,812.83 = 3,991.50/x
  3. Step 3: Cross multiply
    5,871.36x = 8,812.83 × 3,991.50
  4. Step 4: Simplify right side
    5,871.36x = 35,176,410.95
  5. Step 5: Solve for x
    x = 35,176,410.95/5,871.36
  6. Step 6: Final answer
    x = 5,991.19

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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.