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Finding the Fourth Proportional to 1,056, 1,464.03 and 997.68

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Solution

The fourth proportional to 1,056, 1,464.03 and 997.68 is: 1,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056 : 1,464.03 = 997.68 : x
  2. Step 2: Convert to fraction form
    1,056/1,464.03 = 997.68/x
  3. Step 3: Cross multiply
    1,056x = 1,464.03 × 997.68
  4. Step 4: Simplify right side
    1,056x = 1,460,633.45
  5. Step 5: Solve for x
    x = 1,460,633.45/1,056
  6. Step 6: Final answer
    x = 1,383.18

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.