Home / 5,121.23-7,680.62-3,477.33

Finding the Fourth Proportional to 5,121.23, 7,680.62 and 3,477.33

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Solution

The fourth proportional to 5,121.23, 7,680.62 and 3,477.33 is: 5,215.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121.23 : 7,680.62 = 3,477.33 : x
  2. Step 2: Convert to fraction form
    5,121.23/7,680.62 = 3,477.33/x
  3. Step 3: Cross multiply
    5,121.23x = 7,680.62 × 3,477.33
  4. Step 4: Simplify right side
    5,121.23x = 26,708,059.04
  5. Step 5: Solve for x
    x = 26,708,059.04/5,121.23
  6. Step 6: Final answer
    x = 5,215.17

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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.