Home / 7,542.90-11,311.64-2,611.20

Finding the Fourth Proportional to 7,542.90, 11,311.64 and 2,611.20

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Solution

The fourth proportional to 7,542.90, 11,311.64 and 2,611.20 is: 3,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,542.90 : 11,311.64 = 2,611.20 : x
  2. Step 2: Convert to fraction form
    7,542.90/11,311.64 = 2,611.20/x
  3. Step 3: Cross multiply
    7,542.90x = 11,311.64 × 2,611.20
  4. Step 4: Simplify right side
    7,542.90x = 29,536,954.37
  5. Step 5: Solve for x
    x = 29,536,954.37/7,542.90
  6. Step 6: Final answer
    x = 3,915.86

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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.