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Finding the Fourth Proportional to 901.67, 1,350.34 and 694.51

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Solution

The fourth proportional to 901.67, 1,350.34 and 694.51 is: 1,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.67 : 1,350.34 = 694.51 : x
  2. Step 2: Convert to fraction form
    901.67/1,350.34 = 694.51/x
  3. Step 3: Cross multiply
    901.67x = 1,350.34 × 694.51
  4. Step 4: Simplify right side
    901.67x = 937,819.52
  5. Step 5: Solve for x
    x = 937,819.52/901.67
  6. Step 6: Final answer
    x = 1,040.10

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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.