Home / 7,105.28-10,651.40-2,485.76

Finding the Fourth Proportional to 7,105.28, 10,651.40 and 2,485.76

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Solution

The fourth proportional to 7,105.28, 10,651.40 and 2,485.76 is: 3,726.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.28 : 10,651.40 = 2,485.76 : x
  2. Step 2: Convert to fraction form
    7,105.28/10,651.40 = 2,485.76/x
  3. Step 3: Cross multiply
    7,105.28x = 10,651.40 × 2,485.76
  4. Step 4: Simplify right side
    7,105.28x = 26,476,824.06
  5. Step 5: Solve for x
    x = 26,476,824.06/7,105.28
  6. Step 6: Final answer
    x = 3,726.36

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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.