Home / 2,301.05-3,175.29-1,356.79

Finding the Fourth Proportional to 2,301.05, 3,175.29 and 1,356.79

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Solution

The fourth proportional to 2,301.05, 3,175.29 and 1,356.79 is: 1,872.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,301.05 : 3,175.29 = 1,356.79 : x
  2. Step 2: Convert to fraction form
    2,301.05/3,175.29 = 1,356.79/x
  3. Step 3: Cross multiply
    2,301.05x = 3,175.29 × 1,356.79
  4. Step 4: Simplify right side
    2,301.05x = 4,308,207.70
  5. Step 5: Solve for x
    x = 4,308,207.70/2,301.05
  6. Step 6: Final answer
    x = 1,872.28

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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.