Home / 1,634.70-2,255.76-1,005.16

Finding the Fourth Proportional to 1,634.70, 2,255.76 and 1,005.16

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Solution

The fourth proportional to 1,634.70, 2,255.76 and 1,005.16 is: 1,387.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.70 : 2,255.76 = 1,005.16 : x
  2. Step 2: Convert to fraction form
    1,634.70/2,255.76 = 1,005.16/x
  3. Step 3: Cross multiply
    1,634.70x = 2,255.76 × 1,005.16
  4. Step 4: Simplify right side
    1,634.70x = 2,267,399.72
  5. Step 5: Solve for x
    x = 2,267,399.72/1,634.70
  6. Step 6: Final answer
    x = 1,387.04

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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.