Home / 3,101.82-4,280.56-1,775.64

Finding the Fourth Proportional to 3,101.82, 4,280.56 and 1,775.64

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Solution

The fourth proportional to 3,101.82, 4,280.56 and 1,775.64 is: 2,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,101.82 : 4,280.56 = 1,775.64 : x
  2. Step 2: Convert to fraction form
    3,101.82/4,280.56 = 1,775.64/x
  3. Step 3: Cross multiply
    3,101.82x = 4,280.56 × 1,775.64
  4. Step 4: Simplify right side
    3,101.82x = 7,600,733.56
  5. Step 5: Solve for x
    x = 7,600,733.56/3,101.82
  6. Step 6: Final answer
    x = 2,450.41

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1.5x scale

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.