Home / 3,215.30-4,822.54-1,135.37

Finding the Fourth Proportional to 3,215.30, 4,822.54 and 1,135.37

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Solution

The fourth proportional to 3,215.30, 4,822.54 and 1,135.37 is: 1,702.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.30 : 4,822.54 = 1,135.37 : x
  2. Step 2: Convert to fraction form
    3,215.30/4,822.54 = 1,135.37/x
  3. Step 3: Cross multiply
    3,215.30x = 4,822.54 × 1,135.37
  4. Step 4: Simplify right side
    3,215.30x = 5,475,349.33
  5. Step 5: Solve for x
    x = 5,475,349.33/3,215.30
  6. Step 6: Final answer
    x = 1,702.91

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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.