Home / 1,549.45-2,136.99-1,362.55

Finding the Fourth Proportional to 1,549.45, 2,136.99 and 1,362.55

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Solution

The fourth proportional to 1,549.45, 2,136.99 and 1,362.55 is: 1,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549.45 : 2,136.99 = 1,362.55 : x
  2. Step 2: Convert to fraction form
    1,549.45/2,136.99 = 1,362.55/x
  3. Step 3: Cross multiply
    1,549.45x = 2,136.99 × 1,362.55
  4. Step 4: Simplify right side
    1,549.45x = 2,911,755.72
  5. Step 5: Solve for x
    x = 2,911,755.72/1,549.45
  6. Step 6: Final answer
    x = 1,879.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.