Home / 4,921.25-7,381.19-1,411.56

Finding the Fourth Proportional to 4,921.25, 7,381.19 and 1,411.56

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Solution

The fourth proportional to 4,921.25, 7,381.19 and 1,411.56 is: 2,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921.25 : 7,381.19 = 1,411.56 : x
  2. Step 2: Convert to fraction form
    4,921.25/7,381.19 = 1,411.56/x
  3. Step 3: Cross multiply
    4,921.25x = 7,381.19 × 1,411.56
  4. Step 4: Simplify right side
    4,921.25x = 10,418,996.09
  5. Step 5: Solve for x
    x = 10,418,996.09/4,921.25
  6. Step 6: Final answer
    x = 2,117.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.