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Finding the Fourth Proportional to 1,850.20, 2,775.45 and 617.62

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Solution

The fourth proportional to 1,850.20, 2,775.45 and 617.62 is: 926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,850.20 : 2,775.45 = 617.62 : x
  2. Step 2: Convert to fraction form
    1,850.20/2,775.45 = 617.62/x
  3. Step 3: Cross multiply
    1,850.20x = 2,775.45 × 617.62
  4. Step 4: Simplify right side
    1,850.20x = 1,714,162.73
  5. Step 5: Solve for x
    x = 1,714,162.73/1,850.20
  6. Step 6: Final answer
    x = 926.47

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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.