Home / 6,989.36-10,480.80-2,826.08

Finding the Fourth Proportional to 6,989.36, 10,480.80 and 2,826.08

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Solution

The fourth proportional to 6,989.36, 10,480.80 and 2,826.08 is: 4,237.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.36 : 10,480.80 = 2,826.08 : x
  2. Step 2: Convert to fraction form
    6,989.36/10,480.80 = 2,826.08/x
  3. Step 3: Cross multiply
    6,989.36x = 10,480.80 × 2,826.08
  4. Step 4: Simplify right side
    6,989.36x = 29,619,579.26
  5. Step 5: Solve for x
    x = 29,619,579.26/6,989.36
  6. Step 6: Final answer
    x = 4,237.81

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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.