Home / 1,634.38-2,256.05-1,005.01

Finding the Fourth Proportional to 1,634.38, 2,256.05 and 1,005.01

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Solution

The fourth proportional to 1,634.38, 2,256.05 and 1,005.01 is: 1,387.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,634.38 : 2,256.05 = 1,005.01 : x
  2. Step 2: Convert to fraction form
    1,634.38/2,256.05 = 1,005.01/x
  3. Step 3: Cross multiply
    1,634.38x = 2,256.05 × 1,005.01
  4. Step 4: Simplify right side
    1,634.38x = 2,267,349.68
  5. Step 5: Solve for x
    x = 2,267,349.68/1,634.38
  6. Step 6: Final answer
    x = 1,387.29

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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.