Home / 2,991.54-4,128.57-1,733.04

Finding the Fourth Proportional to 2,991.54, 4,128.57 and 1,733.04

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Solution

The fourth proportional to 2,991.54, 4,128.57 and 1,733.04 is: 2,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.54 : 4,128.57 = 1,733.04 : x
  2. Step 2: Convert to fraction form
    2,991.54/4,128.57 = 1,733.04/x
  3. Step 3: Cross multiply
    2,991.54x = 4,128.57 × 1,733.04
  4. Step 4: Simplify right side
    2,991.54x = 7,154,976.95
  5. Step 5: Solve for x
    x = 7,154,976.95/2,991.54
  6. Step 6: Final answer
    x = 2,391.74

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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.