Home / 1,550.26-2,136.88-1,213.58

Finding the Fourth Proportional to 1,550.26, 2,136.88 and 1,213.58

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Solution

The fourth proportional to 1,550.26, 2,136.88 and 1,213.58 is: 1,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.26 : 2,136.88 = 1,213.58 : x
  2. Step 2: Convert to fraction form
    1,550.26/2,136.88 = 1,213.58/x
  3. Step 3: Cross multiply
    1,550.26x = 2,136.88 × 1,213.58
  4. Step 4: Simplify right side
    1,550.26x = 2,593,274.83
  5. Step 5: Solve for x
    x = 2,593,274.83/1,550.26
  6. Step 6: Final answer
    x = 1,672.80

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1.5x scale

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.