Home / 5,131.20-7,696.80-4,329.30

Finding the Fourth Proportional to 5,131.20, 7,696.80 and 4,329.30

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Solution

The fourth proportional to 5,131.20, 7,696.80 and 4,329.30 is: 6,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.20 : 7,696.80 = 4,329.30 : x
  2. Step 2: Convert to fraction form
    5,131.20/7,696.80 = 4,329.30/x
  3. Step 3: Cross multiply
    5,131.20x = 7,696.80 × 4,329.30
  4. Step 4: Simplify right side
    5,131.20x = 33,321,756.24
  5. Step 5: Solve for x
    x = 33,321,756.24/5,131.20
  6. Step 6: Final answer
    x = 6,493.95

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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.