Home / 4,172.40-5,760-2,601.36

Finding the Fourth Proportional to 4,172.40, 5,760 and 2,601.36

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Solution

The fourth proportional to 4,172.40, 5,760 and 2,601.36 is: 3,591.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172.40 : 5,760 = 2,601.36 : x
  2. Step 2: Convert to fraction form
    4,172.40/5,760 = 2,601.36/x
  3. Step 3: Cross multiply
    4,172.40x = 5,760 × 2,601.36
  4. Step 4: Simplify right side
    4,172.40x = 14,983,833.60
  5. Step 5: Solve for x
    x = 14,983,833.60/4,172.40
  6. Step 6: Final answer
    x = 3,591.18

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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.