Home / 5,172.75-7,137.86-2,933.91

Finding the Fourth Proportional to 5,172.75, 7,137.86 and 2,933.91

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Solution

The fourth proportional to 5,172.75, 7,137.86 and 2,933.91 is: 4,048.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.75 : 7,137.86 = 2,933.91 : x
  2. Step 2: Convert to fraction form
    5,172.75/7,137.86 = 2,933.91/x
  3. Step 3: Cross multiply
    5,172.75x = 7,137.86 × 2,933.91
  4. Step 4: Simplify right side
    5,172.75x = 20,941,824.16
  5. Step 5: Solve for x
    x = 20,941,824.16/5,172.75
  6. Step 6: Final answer
    x = 4,048.49

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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.