Home / 3,109.39-4,641.32-2,740.33

Finding the Fourth Proportional to 3,109.39, 4,641.32 and 2,740.33

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Solution

The fourth proportional to 3,109.39, 4,641.32 and 2,740.33 is: 4,090.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109.39 : 4,641.32 = 2,740.33 : x
  2. Step 2: Convert to fraction form
    3,109.39/4,641.32 = 2,740.33/x
  3. Step 3: Cross multiply
    3,109.39x = 4,641.32 × 2,740.33
  4. Step 4: Simplify right side
    3,109.39x = 12,718,748.44
  5. Step 5: Solve for x
    x = 12,718,748.44/3,109.39
  6. Step 6: Final answer
    x = 4,090.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.