Home / 5,515.16-7,611.54-3,836.12

Finding the Fourth Proportional to 5,515.16, 7,611.54 and 3,836.12

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Solution

The fourth proportional to 5,515.16, 7,611.54 and 3,836.12 is: 5,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,515.16 : 7,611.54 = 3,836.12 : x
  2. Step 2: Convert to fraction form
    5,515.16/7,611.54 = 3,836.12/x
  3. Step 3: Cross multiply
    5,515.16x = 7,611.54 × 3,836.12
  4. Step 4: Simplify right side
    5,515.16x = 29,198,780.82
  5. Step 5: Solve for x
    x = 29,198,780.82/5,515.16
  6. Step 6: Final answer
    x = 5,294.28

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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.