Home / 7,125.38-10,683.94-3,422.55

Finding the Fourth Proportional to 7,125.38, 10,683.94 and 3,422.55

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Solution

The fourth proportional to 7,125.38, 10,683.94 and 3,422.55 is: 5,131.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.38 : 10,683.94 = 3,422.55 : x
  2. Step 2: Convert to fraction form
    7,125.38/10,683.94 = 3,422.55/x
  3. Step 3: Cross multiply
    7,125.38x = 10,683.94 × 3,422.55
  4. Step 4: Simplify right side
    7,125.38x = 36,566,318.85
  5. Step 5: Solve for x
    x = 36,566,318.85/7,125.38
  6. Step 6: Final answer
    x = 5,131.84

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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.