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Finding the Fourth Proportional to 1,258.04, 1,735.80 and 733.88

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Solution

The fourth proportional to 1,258.04, 1,735.80 and 733.88 is: 1,012.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258.04 : 1,735.80 = 733.88 : x
  2. Step 2: Convert to fraction form
    1,258.04/1,735.80 = 733.88/x
  3. Step 3: Cross multiply
    1,258.04x = 1,735.80 × 733.88
  4. Step 4: Simplify right side
    1,258.04x = 1,273,868.90
  5. Step 5: Solve for x
    x = 1,273,868.90/1,258.04
  6. Step 6: Final answer
    x = 1,012.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.