Home / 3,775.67-5,215.16-2,902.09

Finding the Fourth Proportional to 3,775.67, 5,215.16 and 2,902.09

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Solution

The fourth proportional to 3,775.67, 5,215.16 and 2,902.09 is: 4,008.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,775.67 : 5,215.16 = 2,902.09 : x
  2. Step 2: Convert to fraction form
    3,775.67/5,215.16 = 2,902.09/x
  3. Step 3: Cross multiply
    3,775.67x = 5,215.16 × 2,902.09
  4. Step 4: Simplify right side
    3,775.67x = 15,134,863.68
  5. Step 5: Solve for x
    x = 15,134,863.68/3,775.67
  6. Step 6: Final answer
    x = 4,008.52

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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.