Home / 3,136.62-4,703.13-1,187.58

Finding the Fourth Proportional to 3,136.62, 4,703.13 and 1,187.58

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Solution

The fourth proportional to 3,136.62, 4,703.13 and 1,187.58 is: 1,780.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.62 : 4,703.13 = 1,187.58 : x
  2. Step 2: Convert to fraction form
    3,136.62/4,703.13 = 1,187.58/x
  3. Step 3: Cross multiply
    3,136.62x = 4,703.13 × 1,187.58
  4. Step 4: Simplify right side
    3,136.62x = 5,585,343.13
  5. Step 5: Solve for x
    x = 5,585,343.13/3,136.62
  6. Step 6: Final answer
    x = 1,780.69

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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.