Home / 3,917.10-5,404.52-2,520.66

Finding the Fourth Proportional to 3,917.10, 5,404.52 and 2,520.66

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Solution

The fourth proportional to 3,917.10, 5,404.52 and 2,520.66 is: 3,477.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.10 : 5,404.52 = 2,520.66 : x
  2. Step 2: Convert to fraction form
    3,917.10/5,404.52 = 2,520.66/x
  3. Step 3: Cross multiply
    3,917.10x = 5,404.52 × 2,520.66
  4. Step 4: Simplify right side
    3,917.10x = 13,622,957.38
  5. Step 5: Solve for x
    x = 13,622,957.38/3,917.10
  6. Step 6: Final answer
    x = 3,477.82

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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.