Home / 5,276.54-7,915.25-1,380.94

Finding the Fourth Proportional to 5,276.54, 7,915.25 and 1,380.94

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Solution

The fourth proportional to 5,276.54, 7,915.25 and 1,380.94 is: 2,071.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.54 : 7,915.25 = 1,380.94 : x
  2. Step 2: Convert to fraction form
    5,276.54/7,915.25 = 1,380.94/x
  3. Step 3: Cross multiply
    5,276.54x = 7,915.25 × 1,380.94
  4. Step 4: Simplify right side
    5,276.54x = 10,930,469.00
  5. Step 5: Solve for x
    x = 10,930,469.00/5,276.54
  6. Step 6: Final answer
    x = 2,071.52

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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.