Home / 1,550.45-2,136.44-1,441.07

Finding the Fourth Proportional to 1,550.45, 2,136.44 and 1,441.07

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Solution

The fourth proportional to 1,550.45, 2,136.44 and 1,441.07 is: 1,985.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.45 : 2,136.44 = 1,441.07 : x
  2. Step 2: Convert to fraction form
    1,550.45/2,136.44 = 1,441.07/x
  3. Step 3: Cross multiply
    1,550.45x = 2,136.44 × 1,441.07
  4. Step 4: Simplify right side
    1,550.45x = 3,078,752.39
  5. Step 5: Solve for x
    x = 3,078,752.39/1,550.45
  6. Step 6: Final answer
    x = 1,985.72

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Half scale
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Double scale
Find fourth proportional to 1,551.45, 2,137.81 and 1,442.07
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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.