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Finding the Fourth Proportional to 1,270.02, 1,752.90 and 827.13

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Solution

The fourth proportional to 1,270.02, 1,752.90 and 827.13 is: 1,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.02 : 1,752.90 = 827.13 : x
  2. Step 2: Convert to fraction form
    1,270.02/1,752.90 = 827.13/x
  3. Step 3: Cross multiply
    1,270.02x = 1,752.90 × 827.13
  4. Step 4: Simplify right side
    1,270.02x = 1,449,876.18
  5. Step 5: Solve for x
    x = 1,449,876.18/1,270.02
  6. Step 6: Final answer
    x = 1,141.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.