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Finding the Fourth Proportional to 1,849.91, 2,775.17 and 617.70

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Solution

The fourth proportional to 1,849.91, 2,775.17 and 617.70 is: 926.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,849.91 : 2,775.17 = 617.70 : x
  2. Step 2: Convert to fraction form
    1,849.91/2,775.17 = 617.70/x
  3. Step 3: Cross multiply
    1,849.91x = 2,775.17 × 617.70
  4. Step 4: Simplify right side
    1,849.91x = 1,714,228.29
  5. Step 5: Solve for x
    x = 1,714,228.29/1,849.91
  6. Step 6: Final answer
    x = 926.65

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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.