Home / 3,120.72-4,294.80-2,362.56

Finding the Fourth Proportional to 3,120.72, 4,294.80 and 2,362.56

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Solution

The fourth proportional to 3,120.72, 4,294.80 and 2,362.56 is: 3,251.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120.72 : 4,294.80 = 2,362.56 : x
  2. Step 2: Convert to fraction form
    3,120.72/4,294.80 = 2,362.56/x
  3. Step 3: Cross multiply
    3,120.72x = 4,294.80 × 2,362.56
  4. Step 4: Simplify right side
    3,120.72x = 10,146,722.69
  5. Step 5: Solve for x
    x = 10,146,722.69/3,120.72
  6. Step 6: Final answer
    x = 3,251.40

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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.