Home / 6,739.88-10,111.43-2,122.88

Finding the Fourth Proportional to 6,739.88, 10,111.43 and 2,122.88

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Solution

The fourth proportional to 6,739.88, 10,111.43 and 2,122.88 is: 3,184.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,739.88 : 10,111.43 = 2,122.88 : x
  2. Step 2: Convert to fraction form
    6,739.88/10,111.43 = 2,122.88/x
  3. Step 3: Cross multiply
    6,739.88x = 10,111.43 × 2,122.88
  4. Step 4: Simplify right side
    6,739.88x = 21,465,307.27
  5. Step 5: Solve for x
    x = 21,465,307.27/6,739.88
  6. Step 6: Final answer
    x = 3,184.82

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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.