Home / 1,216.12-1,824.68-436.22

Finding the Fourth Proportional to 1,216.12, 1,824.68 and 436.22

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Solution

The fourth proportional to 1,216.12, 1,824.68 and 436.22 is: 654.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.12 : 1,824.68 = 436.22 : x
  2. Step 2: Convert to fraction form
    1,216.12/1,824.68 = 436.22/x
  3. Step 3: Cross multiply
    1,216.12x = 1,824.68 × 436.22
  4. Step 4: Simplify right side
    1,216.12x = 795,961.91
  5. Step 5: Solve for x
    x = 795,961.91/1,216.12
  6. Step 6: Final answer
    x = 654.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.