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Finding the Fourth Proportional to 907.29, 1,351.33 and 896.49

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Solution

The fourth proportional to 907.29, 1,351.33 and 896.49 is: 1,335.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    907.29 : 1,351.33 = 896.49 : x
  2. Step 2: Convert to fraction form
    907.29/1,351.33 = 896.49/x
  3. Step 3: Cross multiply
    907.29x = 1,351.33 × 896.49
  4. Step 4: Simplify right side
    907.29x = 1,211,451.59
  5. Step 5: Solve for x
    x = 1,211,451.59/907.29
  6. Step 6: Final answer
    x = 1,335.24

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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.