Home / 10,255.34-15,382.79-2,859.60

Finding the Fourth Proportional to 10,255.34, 15,382.79 and 2,859.60

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Solution

The fourth proportional to 10,255.34, 15,382.79 and 2,859.60 is: 4,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.34 : 15,382.79 = 2,859.60 : x
  2. Step 2: Convert to fraction form
    10,255.34/15,382.79 = 2,859.60/x
  3. Step 3: Cross multiply
    10,255.34x = 15,382.79 × 2,859.60
  4. Step 4: Simplify right side
    10,255.34x = 43,988,611.99
  5. Step 5: Solve for x
    x = 43,988,611.99/10,255.34
  6. Step 6: Final answer
    x = 4,289.34

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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.