Home / 7,119.93-10,682.18-3,422.43

Finding the Fourth Proportional to 7,119.93, 10,682.18 and 3,422.43

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Solution

The fourth proportional to 7,119.93, 10,682.18 and 3,422.43 is: 5,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.93 : 10,682.18 = 3,422.43 : x
  2. Step 2: Convert to fraction form
    7,119.93/10,682.18 = 3,422.43/x
  3. Step 3: Cross multiply
    7,119.93x = 10,682.18 × 3,422.43
  4. Step 4: Simplify right side
    7,119.93x = 36,559,013.30
  5. Step 5: Solve for x
    x = 36,559,013.30/7,119.93
  6. Step 6: Final answer
    x = 5,134.74

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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.