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Finding the Fourth Proportional to 1,797.20, 2,695.80 and 498.56

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Solution

The fourth proportional to 1,797.20, 2,695.80 and 498.56 is: 747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797.20 : 2,695.80 = 498.56 : x
  2. Step 2: Convert to fraction form
    1,797.20/2,695.80 = 498.56/x
  3. Step 3: Cross multiply
    1,797.20x = 2,695.80 × 498.56
  4. Step 4: Simplify right side
    1,797.20x = 1,344,018.05
  5. Step 5: Solve for x
    x = 1,344,018.05/1,797.20
  6. Step 6: Final answer
    x = 747.84

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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.