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Finding the Fourth Proportional to 3,080.54, 4,621.07 and 999.73

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Solution

The fourth proportional to 3,080.54, 4,621.07 and 999.73 is: 1,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.54 : 4,621.07 = 999.73 : x
  2. Step 2: Convert to fraction form
    3,080.54/4,621.07 = 999.73/x
  3. Step 3: Cross multiply
    3,080.54x = 4,621.07 × 999.73
  4. Step 4: Simplify right side
    3,080.54x = 4,619,822.31
  5. Step 5: Solve for x
    x = 4,619,822.31/3,080.54
  6. Step 6: Final answer
    x = 1,499.68

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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.