Home / 5,136.40-7,697.58-2,361.88

Finding the Fourth Proportional to 5,136.40, 7,697.58 and 2,361.88

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Solution

The fourth proportional to 5,136.40, 7,697.58 and 2,361.88 is: 3,539.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136.40 : 7,697.58 = 2,361.88 : x
  2. Step 2: Convert to fraction form
    5,136.40/7,697.58 = 2,361.88/x
  3. Step 3: Cross multiply
    5,136.40x = 7,697.58 × 2,361.88
  4. Step 4: Simplify right side
    5,136.40x = 18,180,760.25
  5. Step 5: Solve for x
    x = 18,180,760.25/5,136.40
  6. Step 6: Final answer
    x = 3,539.59

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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.