Home / 6,986.30-10,475.40-2,822.90

Finding the Fourth Proportional to 6,986.30, 10,475.40 and 2,822.90

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Solution

The fourth proportional to 6,986.30, 10,475.40 and 2,822.90 is: 4,232.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.30 : 10,475.40 = 2,822.90 : x
  2. Step 2: Convert to fraction form
    6,986.30/10,475.40 = 2,822.90/x
  3. Step 3: Cross multiply
    6,986.30x = 10,475.40 × 2,822.90
  4. Step 4: Simplify right side
    6,986.30x = 29,571,032.85
  5. Step 5: Solve for x
    x = 29,571,032.85/6,986.30
  6. Step 6: Final answer
    x = 4,232.72

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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.