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Finding the Fourth Proportional to 3,355.37, 5,032.50 and 890.34

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Solution

The fourth proportional to 3,355.37, 5,032.50 and 890.34 is: 1,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.37 : 5,032.50 = 890.34 : x
  2. Step 2: Convert to fraction form
    3,355.37/5,032.50 = 890.34/x
  3. Step 3: Cross multiply
    3,355.37x = 5,032.50 × 890.34
  4. Step 4: Simplify right side
    3,355.37x = 4,480,636.05
  5. Step 5: Solve for x
    x = 4,480,636.05/3,355.37
  6. Step 6: Final answer
    x = 1,335.36

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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.