Home / 5,007.03-6,912.99-3,121.35

Finding the Fourth Proportional to 5,007.03, 6,912.99 and 3,121.35

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Solution

The fourth proportional to 5,007.03, 6,912.99 and 3,121.35 is: 4,309.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.03 : 6,912.99 = 3,121.35 : x
  2. Step 2: Convert to fraction form
    5,007.03/6,912.99 = 3,121.35/x
  3. Step 3: Cross multiply
    5,007.03x = 6,912.99 × 3,121.35
  4. Step 4: Simplify right side
    5,007.03x = 21,577,861.34
  5. Step 5: Solve for x
    x = 21,577,861.34/5,007.03
  6. Step 6: Final answer
    x = 4,309.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.