Home / 3,400.42-5,090.03-2,618.39

Finding the Fourth Proportional to 3,400.42, 5,090.03 and 2,618.39

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Solution

The fourth proportional to 3,400.42, 5,090.03 and 2,618.39 is: 3,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.42 : 5,090.03 = 2,618.39 : x
  2. Step 2: Convert to fraction form
    3,400.42/5,090.03 = 2,618.39/x
  3. Step 3: Cross multiply
    3,400.42x = 5,090.03 × 2,618.39
  4. Step 4: Simplify right side
    3,400.42x = 13,327,683.65
  5. Step 5: Solve for x
    x = 13,327,683.65/3,400.42
  6. Step 6: Final answer
    x = 3,919.42

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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.