Home / 7,118.97-10,682.90-3,425.01

Finding the Fourth Proportional to 7,118.97, 10,682.90 and 3,425.01

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Solution

The fourth proportional to 7,118.97, 10,682.90 and 3,425.01 is: 5,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.97 : 10,682.90 = 3,425.01 : x
  2. Step 2: Convert to fraction form
    7,118.97/10,682.90 = 3,425.01/x
  3. Step 3: Cross multiply
    7,118.97x = 10,682.90 × 3,425.01
  4. Step 4: Simplify right side
    7,118.97x = 36,589,039.33
  5. Step 5: Solve for x
    x = 36,589,039.33/7,118.97
  6. Step 6: Final answer
    x = 5,139.65

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1.5x scale

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.