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Finding the Fourth Proportional to 2,389.97, 3,585.26 and 746.62

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Solution

The fourth proportional to 2,389.97, 3,585.26 and 746.62 is: 1,120.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.97 : 3,585.26 = 746.62 : x
  2. Step 2: Convert to fraction form
    2,389.97/3,585.26 = 746.62/x
  3. Step 3: Cross multiply
    2,389.97x = 3,585.26 × 746.62
  4. Step 4: Simplify right side
    2,389.97x = 2,676,819.72
  5. Step 5: Solve for x
    x = 2,676,819.72/2,389.97
  6. Step 6: Final answer
    x = 1,120.02

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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.