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Finding the Fourth Proportional to 1,798.66, 2,697.72 and 499.96

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Solution

The fourth proportional to 1,798.66, 2,697.72 and 499.96 is: 749.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.66 : 2,697.72 = 499.96 : x
  2. Step 2: Convert to fraction form
    1,798.66/2,697.72 = 499.96/x
  3. Step 3: Cross multiply
    1,798.66x = 2,697.72 × 499.96
  4. Step 4: Simplify right side
    1,798.66x = 1,348,752.09
  5. Step 5: Solve for x
    x = 1,348,752.09/1,798.66
  6. Step 6: Final answer
    x = 749.86

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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.