Home / 1,080.96-1,621.26-301.03

Finding the Fourth Proportional to 1,080.96, 1,621.26 and 301.03

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Solution

The fourth proportional to 1,080.96, 1,621.26 and 301.03 is: 451.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080.96 : 1,621.26 = 301.03 : x
  2. Step 2: Convert to fraction form
    1,080.96/1,621.26 = 301.03/x
  3. Step 3: Cross multiply
    1,080.96x = 1,621.26 × 301.03
  4. Step 4: Simplify right side
    1,080.96x = 488,047.90
  5. Step 5: Solve for x
    x = 488,047.90/1,080.96
  6. Step 6: Final answer
    x = 451.49

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Double scale
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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.