Home / 5,172.44-7,758.57-1,276.85

Finding the Fourth Proportional to 5,172.44, 7,758.57 and 1,276.85

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Solution

The fourth proportional to 5,172.44, 7,758.57 and 1,276.85 is: 1,915.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.44 : 7,758.57 = 1,276.85 : x
  2. Step 2: Convert to fraction form
    5,172.44/7,758.57 = 1,276.85/x
  3. Step 3: Cross multiply
    5,172.44x = 7,758.57 × 1,276.85
  4. Step 4: Simplify right side
    5,172.44x = 9,906,530.10
  5. Step 5: Solve for x
    x = 9,906,530.10/5,172.44
  6. Step 6: Final answer
    x = 1,915.25

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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.