Home / 5,172.88-7,137.36-2,934.25

Finding the Fourth Proportional to 5,172.88, 7,137.36 and 2,934.25

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Solution

The fourth proportional to 5,172.88, 7,137.36 and 2,934.25 is: 4,048.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.88 : 7,137.36 = 2,934.25 : x
  2. Step 2: Convert to fraction form
    5,172.88/7,137.36 = 2,934.25/x
  3. Step 3: Cross multiply
    5,172.88x = 7,137.36 × 2,934.25
  4. Step 4: Simplify right side
    5,172.88x = 20,942,798.58
  5. Step 5: Solve for x
    x = 20,942,798.58/5,172.88
  6. Step 6: Final answer
    x = 4,048.58

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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.