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Finding the Fourth Proportional to 2,775.22, 4,161.44 and 925.70

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Solution

The fourth proportional to 2,775.22, 4,161.44 and 925.70 is: 1,388.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,775.22 : 4,161.44 = 925.70 : x
  2. Step 2: Convert to fraction form
    2,775.22/4,161.44 = 925.70/x
  3. Step 3: Cross multiply
    2,775.22x = 4,161.44 × 925.70
  4. Step 4: Simplify right side
    2,775.22x = 3,852,245.01
  5. Step 5: Solve for x
    x = 3,852,245.01/2,775.22
  6. Step 6: Final answer
    x = 1,388.09

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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.