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Finding the Fourth Proportional to 1,080.95, 1,621.42 and 593.73

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Solution

The fourth proportional to 1,080.95, 1,621.42 and 593.73 is: 890.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080.95 : 1,621.42 = 593.73 : x
  2. Step 2: Convert to fraction form
    1,080.95/1,621.42 = 593.73/x
  3. Step 3: Cross multiply
    1,080.95x = 1,621.42 × 593.73
  4. Step 4: Simplify right side
    1,080.95x = 962,684.21
  5. Step 5: Solve for x
    x = 962,684.21/1,080.95
  6. Step 6: Final answer
    x = 890.60

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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.