Home / 7,136.15-10,704.35-1,942.02

Finding the Fourth Proportional to 7,136.15, 10,704.35 and 1,942.02

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Solution

The fourth proportional to 7,136.15, 10,704.35 and 1,942.02 is: 2,913.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.15 : 10,704.35 = 1,942.02 : x
  2. Step 2: Convert to fraction form
    7,136.15/10,704.35 = 1,942.02/x
  3. Step 3: Cross multiply
    7,136.15x = 10,704.35 × 1,942.02
  4. Step 4: Simplify right side
    7,136.15x = 20,788,066.64
  5. Step 5: Solve for x
    x = 20,788,066.64/7,136.15
  6. Step 6: Final answer
    x = 2,913.07

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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.