Home / 3,905.67-5,388.18-2,841.10

Finding the Fourth Proportional to 3,905.67, 5,388.18 and 2,841.10

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Solution

The fourth proportional to 3,905.67, 5,388.18 and 2,841.10 is: 3,919.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905.67 : 5,388.18 = 2,841.10 : x
  2. Step 2: Convert to fraction form
    3,905.67/5,388.18 = 2,841.10/x
  3. Step 3: Cross multiply
    3,905.67x = 5,388.18 × 2,841.10
  4. Step 4: Simplify right side
    3,905.67x = 15,308,358.20
  5. Step 5: Solve for x
    x = 15,308,358.20/3,905.67
  6. Step 6: Final answer
    x = 3,919.52

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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.