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Finding the Fourth Proportional to 701.13, 1,043.43 and 675.21

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Solution

The fourth proportional to 701.13, 1,043.43 and 675.21 is: 1,004.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.13 : 1,043.43 = 675.21 : x
  2. Step 2: Convert to fraction form
    701.13/1,043.43 = 675.21/x
  3. Step 3: Cross multiply
    701.13x = 1,043.43 × 675.21
  4. Step 4: Simplify right side
    701.13x = 704,534.37
  5. Step 5: Solve for x
    x = 704,534.37/701.13
  6. Step 6: Final answer
    x = 1,004.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.