Home / 3,136.88-4,705.32-1,188.62

Finding the Fourth Proportional to 3,136.88, 4,705.32 and 1,188.62

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Solution

The fourth proportional to 3,136.88, 4,705.32 and 1,188.62 is: 1,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.88 : 4,705.32 = 1,188.62 : x
  2. Step 2: Convert to fraction form
    3,136.88/4,705.32 = 1,188.62/x
  3. Step 3: Cross multiply
    3,136.88x = 4,705.32 × 1,188.62
  4. Step 4: Simplify right side
    3,136.88x = 5,592,837.46
  5. Step 5: Solve for x
    x = 5,592,837.46/3,136.88
  6. Step 6: Final answer
    x = 1,782.93

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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.