Home / 3,920.96-5,411.30-2,242.61

Finding the Fourth Proportional to 3,920.96, 5,411.30 and 2,242.61

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Solution

The fourth proportional to 3,920.96, 5,411.30 and 2,242.61 is: 3,095.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,920.96 : 5,411.30 = 2,242.61 : x
  2. Step 2: Convert to fraction form
    3,920.96/5,411.30 = 2,242.61/x
  3. Step 3: Cross multiply
    3,920.96x = 5,411.30 × 2,242.61
  4. Step 4: Simplify right side
    3,920.96x = 12,135,454.63
  5. Step 5: Solve for x
    x = 12,135,454.63/3,920.96
  6. Step 6: Final answer
    x = 3,095.03

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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.