Home / 3,920.10-5,409.69-2,241.54

Finding the Fourth Proportional to 3,920.10, 5,409.69 and 2,241.54

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Solution

The fourth proportional to 3,920.10, 5,409.69 and 2,241.54 is: 3,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.10 : 5,409.69 = 2,241.54 : x
  2. Step 2: Convert to fraction form
    3,920.10/5,409.69 = 2,241.54/x
  3. Step 3: Cross multiply
    3,920.10x = 5,409.69 × 2,241.54
  4. Step 4: Simplify right side
    3,920.10x = 12,126,036.52
  5. Step 5: Solve for x
    x = 12,126,036.52/3,920.10
  6. Step 6: Final answer
    x = 3,093.30

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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.