Home / 7,121.14-10,675.20-3,170.32

Finding the Fourth Proportional to 7,121.14, 10,675.20 and 3,170.32

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Solution

The fourth proportional to 7,121.14, 10,675.20 and 3,170.32 is: 4,752.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.14 : 10,675.20 = 3,170.32 : x
  2. Step 2: Convert to fraction form
    7,121.14/10,675.20 = 3,170.32/x
  3. Step 3: Cross multiply
    7,121.14x = 10,675.20 × 3,170.32
  4. Step 4: Simplify right side
    7,121.14x = 33,843,800.06
  5. Step 5: Solve for x
    x = 33,843,800.06/7,121.14
  6. Step 6: Final answer
    x = 4,752.58

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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.