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Finding the Fourth Proportional to 1,758.66, 2,637.68 and 662.73

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Solution

The fourth proportional to 1,758.66, 2,637.68 and 662.73 is: 993.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,758.66 : 2,637.68 = 662.73 : x
  2. Step 2: Convert to fraction form
    1,758.66/2,637.68 = 662.73/x
  3. Step 3: Cross multiply
    1,758.66x = 2,637.68 × 662.73
  4. Step 4: Simplify right side
    1,758.66x = 1,748,066.35
  5. Step 5: Solve for x
    x = 1,748,066.35/1,758.66
  6. Step 6: Final answer
    x = 993.98

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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.