Home / 1,735.25-2,601.33-639.35

Finding the Fourth Proportional to 1,735.25, 2,601.33 and 639.35

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Solution

The fourth proportional to 1,735.25, 2,601.33 and 639.35 is: 958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,735.25 : 2,601.33 = 639.35 : x
  2. Step 2: Convert to fraction form
    1,735.25/2,601.33 = 639.35/x
  3. Step 3: Cross multiply
    1,735.25x = 2,601.33 × 639.35
  4. Step 4: Simplify right side
    1,735.25x = 1,663,160.34
  5. Step 5: Solve for x
    x = 1,663,160.34/1,735.25
  6. Step 6: Final answer
    x = 958.46

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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.