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Finding the Fourth Proportional to 7,291.03, 10,936.59 and 2,611.21

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Solution

The fourth proportional to 7,291.03, 10,936.59 and 2,611.21 is: 3,916.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,291.03 : 10,936.59 = 2,611.21 : x
  2. Step 2: Convert to fraction form
    7,291.03/10,936.59 = 2,611.21/x
  3. Step 3: Cross multiply
    7,291.03x = 10,936.59 × 2,611.21
  4. Step 4: Simplify right side
    7,291.03x = 28,557,733.17
  5. Step 5: Solve for x
    x = 28,557,733.17/7,291.03
  6. Step 6: Final answer
    x = 3,916.83

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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.