Home / 7,122.46-10,684.92-3,175.12

Finding the Fourth Proportional to 7,122.46, 10,684.92 and 3,175.12

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Solution

The fourth proportional to 7,122.46, 10,684.92 and 3,175.12 is: 4,763.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.46 : 10,684.92 = 3,175.12 : x
  2. Step 2: Convert to fraction form
    7,122.46/10,684.92 = 3,175.12/x
  3. Step 3: Cross multiply
    7,122.46x = 10,684.92 × 3,175.12
  4. Step 4: Simplify right side
    7,122.46x = 33,925,903.19
  5. Step 5: Solve for x
    x = 33,925,903.19/7,122.46
  6. Step 6: Final answer
    x = 4,763.23

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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.