Home / 7,240.28-10,865.60-3,083.20

Finding the Fourth Proportional to 7,240.28, 10,865.60 and 3,083.20

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Solution

The fourth proportional to 7,240.28, 10,865.60 and 3,083.20 is: 4,627.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.28 : 10,865.60 = 3,083.20 : x
  2. Step 2: Convert to fraction form
    7,240.28/10,865.60 = 3,083.20/x
  3. Step 3: Cross multiply
    7,240.28x = 10,865.60 × 3,083.20
  4. Step 4: Simplify right side
    7,240.28x = 33,500,786.90
  5. Step 5: Solve for x
    x = 33,500,786.90/7,240.28
  6. Step 6: Final answer
    x = 4,627.00

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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.