Home / 7,240.78-10,866.35-3,083.70

Finding the Fourth Proportional to 7,240.78, 10,866.35 and 3,083.70

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Solution

The fourth proportional to 7,240.78, 10,866.35 and 3,083.70 is: 4,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.78 : 10,866.35 = 3,083.70 : x
  2. Step 2: Convert to fraction form
    7,240.78/10,866.35 = 3,083.70/x
  3. Step 3: Cross multiply
    7,240.78x = 10,866.35 × 3,083.70
  4. Step 4: Simplify right side
    7,240.78x = 33,508,563.50
  5. Step 5: Solve for x
    x = 33,508,563.50/7,240.78
  6. Step 6: Final answer
    x = 4,627.76

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1.5x scale

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.