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Finding the Fourth Proportional to 1,767.96, 2,651.94 and 1,218.50

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Solution

The fourth proportional to 1,767.96, 2,651.94 and 1,218.50 is: 1,827.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,767.96 : 2,651.94 = 1,218.50 : x
  2. Step 2: Convert to fraction form
    1,767.96/2,651.94 = 1,218.50/x
  3. Step 3: Cross multiply
    1,767.96x = 2,651.94 × 1,218.50
  4. Step 4: Simplify right side
    1,767.96x = 3,231,388.89
  5. Step 5: Solve for x
    x = 3,231,388.89/1,767.96
  6. Step 6: Final answer
    x = 1,827.75

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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.