Home / 3,101.29-4,278.72-1,774.51

Finding the Fourth Proportional to 3,101.29, 4,278.72 and 1,774.51

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Solution

The fourth proportional to 3,101.29, 4,278.72 and 1,774.51 is: 2,448.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.29 : 4,278.72 = 1,774.51 : x
  2. Step 2: Convert to fraction form
    3,101.29/4,278.72 = 1,774.51/x
  3. Step 3: Cross multiply
    3,101.29x = 4,278.72 × 1,774.51
  4. Step 4: Simplify right side
    3,101.29x = 7,592,631.43
  5. Step 5: Solve for x
    x = 7,592,631.43/3,101.29
  6. Step 6: Final answer
    x = 2,448.22

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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.