Home / 1,863.30-2,792.44-985.58

Finding the Fourth Proportional to 1,863.30, 2,792.44 and 985.58

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Solution

The fourth proportional to 1,863.30, 2,792.44 and 985.58 is: 1,477.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863.30 : 2,792.44 = 985.58 : x
  2. Step 2: Convert to fraction form
    1,863.30/2,792.44 = 985.58/x
  3. Step 3: Cross multiply
    1,863.30x = 2,792.44 × 985.58
  4. Step 4: Simplify right side
    1,863.30x = 2,752,173.02
  5. Step 5: Solve for x
    x = 2,752,173.02/1,863.30
  6. Step 6: Final answer
    x = 1,477.04

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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.